diff --git a/keyboard/atomic/atomic.c b/keyboard/atomic/atomic.c
index 399649716..b4b261457 100644
--- a/keyboard/atomic/atomic.c
+++ b/keyboard/atomic/atomic.c
@@ -2,27 +2,27 @@
 
 __attribute__ ((weak))
 void matrix_init_user(void) {
-	// leave this function blank - it can be defined in a keymap file
+    // leave this function blank - it can be defined in a keymap file
 };
 
 __attribute__ ((weak))
 void matrix_scan_user(void) {
-	// leave this function blank - it can be defined in a keymap file
+    // leave this function blank - it can be defined in a keymap file
 }
 
 __attribute__ ((weak))
 void process_action_user(keyrecord_t *record) {
-	// leave this function blank - it can be defined in a keymap file
+    // leave this function blank - it can be defined in a keymap file
 }
 
 __attribute__ ((weak))
 void led_set_user(uint8_t usb_led) {
-	// leave this function blank - it can be defined in a keymap file
+    // leave this function blank - it can be defined in a keymap file
 }
 
 void matrix_init_kb(void) {
-	// put your keyboard start-up code here
-	// runs once when the firmware starts up
+    // put your keyboard start-up code here
+    // runs once when the firmware starts up
 
     MCUCR |= (1<<JTD);
     MCUCR |= (1<<JTD);
@@ -35,31 +35,39 @@ void matrix_init_kb(void) {
     DDRE |= (1<<6);
     PORTE |= (1<<6);
 
-	matrix_init_user();
+    matrix_init_user();
 }
 
 void matrix_scan_kb(void) {
-	// put your looping keyboard code here
-	// runs every cycle (a lot)
+    // put your looping keyboard code here
+    // runs every cycle (a lot)
 
-	matrix_scan_user();
+    matrix_scan_user();
 }
 
 void process_action_kb(keyrecord_t *record) {
-	// put your per-action keyboard code here
-	// runs for every action, just before processing by the firmware
+    // put your per-action keyboard code here
+    // runs for every action, just before processing by the firmware
 
-	process_action_user(record);
+    process_action_user(record);
 }
 
 void led_set_kb(uint8_t usb_led) {
-	// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+    // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
 
-	led_set_user(usb_led);
+    led_set_user(usb_led);
 }
 
 #ifdef BACKLIGHT_ENABLE
 #define CHANNEL OCR1C
+#define BREATHING_NO_HALT  0
+#define BREATHING_HALT_OFF 1
+#define BREATHING_HALT_ON  2
+
+static uint8_t breath_intensity;
+static uint8_t breath_speed;
+static uint16_t breathing_index;
+static uint8_t breathing_halt;
 
 void backlight_init_ports()
 {
@@ -67,54 +75,250 @@ void backlight_init_ports()
     // Setup PB7 as output and output low.
     DDRB |= (1<<7);
     PORTB &= ~(1<<7);
-    
-    // Use full 16-bit resolution. 
+
+    // Use full 16-bit resolution.
     ICR1 = 0xFFFF;
 
     // I could write a wall of text here to explain... but TL;DW
     // Go read the ATmega32u4 datasheet.
     // And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
-    
+
     // Pin PB7 = OCR1C (Timer 1, Channel C)
     // Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
     // (i.e. start high, go low when counter matches.)
     // WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
     // Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
-    
+
     TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
     TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
 
     backlight_init();
+    breathing_defaults();
 }
 
 void backlight_set(uint8_t level)
 {
+    // Prevent backlight blink on lowest level
+    PORTB &= ~(_BV(PORTB7));
+
     if ( level == 0 )
     {
         // Turn off PWM control on PB7, revert to output low.
         TCCR1A &= ~(_BV(COM1C1));
+
+        // Set the brightness to 0
         CHANNEL = 0x0;
-        // Prevent backlight blink on lowest level
-        PORTB &= ~(_BV(PORTB7));
     }
-    else if ( level == BACKLIGHT_LEVELS )
+    else if ( level >= BACKLIGHT_LEVELS )
     {
-        // Prevent backlight blink on lowest level
-        PORTB &= ~(_BV(PORTB7));
         // Turn on PWM control of PB7
         TCCR1A |= _BV(COM1C1);
-        // Set the brightness
+
+        // Set the brightness to max
         CHANNEL = 0xFFFF;
     }
-    else        
+    else
     {
-        // Prevent backlight blink on lowest level
-        PORTB &= ~(_BV(PORTB7));
         // Turn on PWM control of PB7
         TCCR1A |= _BV(COM1C1);
+
         // Set the brightness
         CHANNEL = 0xFFFF >> ((BACKLIGHT_LEVELS - level) * ((BACKLIGHT_LEVELS + 1) / 2));
     }
+    breathing_intensity_default();
 }
 
+
+void breathing_enable(void)
+{
+    if (get_backlight_level() == 0)
+    {
+        breathing_index = 0;
+    }
+    else
+    {
+        // Set breathing_index to be at the midpoint (brightest point)
+        breathing_index = 0x20 << breath_speed;
+    }
+
+    breathing_halt = BREATHING_NO_HALT;
+
+    // Enable breathing interrupt
+    TIMSK1 |= _BV(OCIE1A);
+}
+
+void breathing_pulse(void)
+{
+    if (get_backlight_level() == 0)
+    {
+        breathing_index = 0;
+    }
+    else
+    {
+        // Set breathing_index to be at the midpoint + 1 (brightest point)
+        breathing_index = 0x21 << breath_speed;
+    }
+
+    breathing_halt = BREATHING_HALT_ON;
+
+    // Enable breathing interrupt
+    TIMSK1 |= _BV(OCIE1A);
+}
+
+void breathing_disable(void)
+{
+    // Disable breathing interrupt
+    TIMSK1 &= ~_BV(OCIE1A);
+    backlight_set(get_backlight_level());
+}
+
+void breathing_self_disable(void)
+{
+    if (get_backlight_level() == 0)
+    {
+        breathing_halt = BREATHING_HALT_OFF;
+    }
+    else
+    {
+        breathing_halt = BREATHING_HALT_ON;
+    }
+
+    //backlight_set(get_backlight_level());
+}
+
+void breathing_toggle(void)
+{
+    if (!is_breathing())
+    {
+        if (get_backlight_level() == 0)
+        {
+            breathing_index = 0;
+        }
+        else
+        {
+            // Set breathing_index to be at the midpoint + 1 (brightest point)
+            breathing_index = 0x21 << breath_speed;
+        }
+
+        breathing_halt = BREATHING_NO_HALT;
+    }
+
+    // Toggle breathing interrupt
+    TIMSK1 ^= _BV(OCIE1A);
+
+    // Restore backlight level
+    if (!is_breathing())
+    {
+        backlight_set(get_backlight_level());
+    }
+}
+
+bool is_breathing(void)
+{
+    return (TIMSK1 && _BV(OCIE1A));
+}
+
+void breathing_intensity_default(void)
+{
+    //breath_intensity = (uint8_t)((uint16_t)100 * (uint16_t)get_backlight_level() / (uint16_t)BACKLIGHT_LEVELS);
+    breath_intensity = ((BACKLIGHT_LEVELS - get_backlight_level()) * ((BACKLIGHT_LEVELS + 1) / 2));
+}
+
+void breathing_intensity_set(uint8_t value)
+{
+    breath_intensity = value;
+}
+
+void breathing_speed_default(void)
+{
+    breath_speed = 4;
+}
+
+void breathing_speed_set(uint8_t value)
+{
+    bool is_breathing_now = is_breathing();
+    uint8_t old_breath_speed = breath_speed;
+
+    if (is_breathing_now)
+    {
+        // Disable breathing interrupt
+        TIMSK1 &= ~_BV(OCIE1A);
+    }
+
+    breath_speed = value;
+
+    if (is_breathing_now)
+    {
+        // Adjust index to account for new speed
+        breathing_index = (( (uint8_t)( (breathing_index) >> old_breath_speed ) ) & 0x3F) << breath_speed;
+
+        // Enable breathing interrupt
+        TIMSK1 |= _BV(OCIE1A);
+    }
+
+}
+
+void breathing_speed_inc(uint8_t value)
+{
+    if ((uint16_t)(breath_speed - value) > 10 )
+    {
+        breathing_speed_set(0);
+    }
+    else
+    {
+        breathing_speed_set(breath_speed - value);
+    }
+}
+
+void breathing_speed_dec(uint8_t value)
+{
+    if ((uint16_t)(breath_speed + value) > 10 )
+    {
+        breathing_speed_set(10);
+    }
+    else
+    {
+        breathing_speed_set(breath_speed + value);
+    }
+}
+
+void breathing_defaults(void)
+{
+    breathing_intensity_default();
+    breathing_speed_default();
+    breathing_halt = BREATHING_NO_HALT;
+}
+
+/* Breathing Sleep LED brighness(PWM On period) table
+ * (64[steps] * 4[duration]) / 64[PWM periods/s] = 4 second breath cycle
+ *
+ * http://www.wolframalpha.com/input/?i=%28sin%28+x%2F64*pi%29**8+*+255%2C+x%3D0+to+63
+ * (0..63).each {|x| p ((sin(x/64.0*PI)**8)*255).to_i }
+ */
+static const uint8_t breathing_table[64] PROGMEM = {
+  0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   1,   2,   4,   6,  10,
+ 15,  23,  32,  44,  58,  74,  93, 113, 135, 157, 179, 199, 218, 233, 245, 252,
+255, 252, 245, 233, 218, 199, 179, 157, 135, 113,  93,  74,  58,  44,  32,  23,
+ 15,  10,   6,   4,   2,   1,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+};
+
+ISR(TIMER1_COMPA_vect)
+{
+    // CHANNEL = (pgm_read_byte(&breathing_table[ ( (uint8_t)( (breathing_index++) >> breath_speed ) ) & 0x3F ] )) * breath_intensity;
+
+
+    uint8_t local_index = ( (uint8_t)( (breathing_index++) >> breath_speed ) ) & 0x3F;
+
+    if (((breathing_halt == BREATHING_HALT_ON) && (local_index == 0x20)) || ((breathing_halt == BREATHING_HALT_OFF) && (local_index == 0x3F)))
+    {
+        // Disable breathing interrupt
+        TIMSK1 &= ~_BV(OCIE1A);
+    }
+
+    CHANNEL = (uint16_t)(((uint16_t)pgm_read_byte(&breathing_table[local_index]) * 257)) >> breath_intensity;
+
+}
+
+
+
 #endif
\ No newline at end of file
diff --git a/keyboard/atomic/atomic.h b/keyboard/atomic/atomic.h
index 0c7aeb1cc..845a9043e 100644
--- a/keyboard/atomic/atomic.h
+++ b/keyboard/atomic/atomic.h
@@ -33,4 +33,20 @@ void process_action_user(keyrecord_t *record);
 void led_set_user(uint8_t usb_led);
 void backlight_init_ports(void);
 
+void breathing_enable(void);
+void breathing_pulse(void);
+void breathing_disable(void);
+void breathing_self_disable(void);
+void breathing_toggle(void);
+bool is_breathing(void);
+
+
+void breathing_defaults(void);
+void breathing_intensity_default(void);
+void breathing_speed_default(void);
+void breathing_speed_set(uint8_t value);
+void breathing_speed_inc(uint8_t value);
+void breathing_speed_dec(uint8_t value);
+
+
 #endif
\ No newline at end of file
diff --git a/keyboard/atomic/keymaps/pvc/config.h b/keyboard/atomic/keymaps/pvc/config.h
index 034bc5dc5..5e956286b 100644
--- a/keyboard/atomic/keymaps/pvc/config.h
+++ b/keyboard/atomic/keymaps/pvc/config.h
@@ -22,7 +22,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* USB Device descriptor parameter */
 #define VENDOR_ID       0xFEED
-#define PRODUCT_ID      0x6060
+#define PRODUCT_ID      0x0419
 #define DEVICE_VER      0x0001
 #define MANUFACTURER    Ortholinear Keyboards
 #define PRODUCT         The Atomic Keyboard
@@ -162,5 +162,4 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //#define VIBRATO_ENABLE
 //#define VIBRATO_STRENGTH_ENABLE
 
-
 #endif
diff --git a/keyboard/atomic/keymaps/pvc/keymap.c b/keyboard/atomic/keymaps/pvc/keymap.c
index 3d604a868..ff7384268 100644
--- a/keyboard/atomic/keymaps/pvc/keymap.c
+++ b/keyboard/atomic/keymaps/pvc/keymap.c
@@ -8,41 +8,44 @@
     #include "song_list.h"
 #endif
 
-#define LAYER_QWERTY         0
-#define LAYER_COLEMAK        1
-#define LAYER_DVORAK         2
-#define LAYER_RAISE          3
-#define LAYER_LOWER          4
-#define LAYER_FUNCTION       5
-#define LAYER_MOUSE          6
-#define LAYER_MUSIC          7
-#define LAYER_ADJUST         8
+#define LAYER_QWERTY                     0
+#define LAYER_COLEMAK                    1
+#define LAYER_DVORAK                     2
+#define LAYER_UPPER                      3
+#define LAYER_LOWER                      4
+#define LAYER_FUNCTION                   5
+#define LAYER_MOUSE                      6
+#define LAYER_MUSIC                      7
+#define LAYER_ADJUST                     8
 
-#define MACRO_QWERTY         0
-#define MACRO_COLEMAK        1
-#define MACRO_DVORAK         2
-#define MACRO_RAISE          3
-#define MACRO_LOWER          4
-#define MACRO_FUNCTION       5
-#define MACRO_MOUSE          6
-#define MACRO_TIMBRE_1       7
-#define MACRO_TIMBRE_2       8
-#define MACRO_TIMBRE_3       9
-#define MACRO_TIMBRE_4      10
-#define MACRO_TEMPO_U       11
-#define MACRO_TEMPO_D       12
-#define MACRO_TONE_DEFAULT  13
-#define MACRO_MUSIC_ON      14
-#define MACRO_MUSIC_OFF     15
-#define MACRO_AUDIO_ON      16
-#define MACRO_AUDIO_OFF     17
-#define MACRO_INC_VOICE     18
-#define MACRO_DEC_VOICE     19
+#define MACRO_QWERTY                     0
+#define MACRO_COLEMAK                    1
+#define MACRO_DVORAK                     2
+#define MACRO_UPPER                      3
+#define MACRO_LOWER                      4
+#define MACRO_FUNCTION                   5
+#define MACRO_MOUSE                      6
+#define MACRO_TIMBRE_1                   7
+#define MACRO_TIMBRE_2                   8
+#define MACRO_TIMBRE_3                   9
+#define MACRO_TIMBRE_4                  10
+#define MACRO_TEMPO_U                   11
+#define MACRO_TEMPO_D                   12
+#define MACRO_TONE_DEFAULT              13
+#define MACRO_MUSIC_TOGGLE              14
+#define MACRO_AUDIO_TOGGLE              16
+#define MACRO_INC_VOICE                 18
+#define MACRO_DEC_VOICE                 19
+#define MACRO_BACKLIGHT                 20
+#define MACRO_BREATH_TOGGLE             21
+#define MACRO_BREATH_SPEED_INC          23
+#define MACRO_BREATH_SPEED_DEC          24
+#define MACRO_BREATH_DEFAULT            25
 
 #define M_QWRTY             M(MACRO_QWERTY)
 #define M_COLMK             M(MACRO_COLEMAK)
 #define M_DVORK             M(MACRO_DVORAK)
-#define M_RAISE             M(MACRO_RAISE)
+#define M_UPPER             M(MACRO_UPPER)
 #define M_LOWER             M(MACRO_LOWER)
 #define M_FUNCT             M(MACRO_FUNCTION)
 #define M_MOUSE             M(MACRO_MOUSE)
@@ -53,12 +56,15 @@
 #define TMPO_UP             M(MACRO_TEMPO_U)
 #define TMPO_DN             M(MACRO_TEMPO_D)
 #define TMPO_DF             M(MACRO_TONE_DEFAULT)
+#define M_BACKL             M(MACRO_BACKLIGHT)
+#define M_BRTOG             M(MACRO_BREATH_TOGGLE)
+#define M_BSPDU             M(MACRO_BREATH_SPEED_INC)
+#define M_BSPDD             M(MACRO_BREATH_SPEED_DEC)
+#define M_BDFLT             M(MACRO_BREATH_DEFAULT)
 
 
-#define MUS_ON              M(MACRO_MUSIC_ON)
-#define MUS_OFF             M(MACRO_MUSIC_OFF)
-#define AUD_OFF             M(MACRO_AUDIO_OFF)
-#define AUD_ON              M(MACRO_AUDIO_ON)
+#define MUS_TOG             M(MACRO_MUSIC_TOGGLE)
+#define AUD_TOG             M(MACRO_AUDIO_TOGGLE)
 #define VC_UP               M(MACRO_INC_VOICE)
 #define VC_DOWN             M(MACRO_DEC_VOICE)
 
@@ -74,6 +80,7 @@
 #define SC_ACLS             LALT(KC_F4)
 #define SC_CCLS             LCTL(KC_F4)
 
+#define OS_SHFT             KC_FN0
 
 #define _______             KC_TRNS
 #define XXXXXXX             KC_NO
@@ -92,16 +99,16 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ---------------------+--------|
  * | LSHIFT | Z      | X      | C      | V      | B      | N      | M      | ,      | .      | /      | XXXXXX . RSHIFT | UP     | PG DN  |
  * |--------+--------+--------+--------+--------+- 2u ------------+--------+--------+--------+--------+-----------------+--------+--------|
- * | LCTRL  | LWIN   | FN     | LALT   | RAISE  | XXXXXX . SPACE  | LOWER  | RALT   | RWIN   | MENU   | RCTRL  | LEFT   | DOWN   | RIGHT  |
+ * | LCTRL  | LWIN   | FN     | LALT   | UPPER  | XXXXXX . SPACE  | LOWER  | SHIFT  | RALT   | APP    | RCTRL  | LEFT   | DOWN   | RIGHT  |
  * '--------------------------------------------------------------------------------------------------------------------------------------'
  */
 
- [LAYER_QWERTY]       = { /* QWERTY */
+ [LAYER_QWERTY]       = { // QWERTY
   { KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_BSPC  },
   { KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL   },
   { KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, KC_ENT,  KC_ENT,  KC_PGUP  },
   { KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, KC_RSFT, KC_UP,   KC_PGDN  },
-  { KC_LCTL, KC_LGUI, M_FUNCT, KC_LALT, M_RAISE, KC_SPC,  KC_SPC,  M_LOWER, KC_RALT, KC_RGUI, KC_MENU, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT  },
+  { KC_LCTL, KC_LGUI, M_FUNCT, KC_LALT, M_UPPER, KC_SPC,  KC_SPC,  M_LOWER, OS_SHFT, KC_RALT, KC_APP,  KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT  },
  },
 
  /* COLEMAK
@@ -114,17 +121,17 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ---------------------+--------|
  * | LSHIFT | Z      | X      | C      | V      | B      | K      | M      | ,      | .      | /      | XXXXXX . RSHIFT | UP     | PG DN  |
  * |--------+--------+--------+--------+--------+- 2u ------------+--------+--------+--------+--------+-----------------+--------+--------|
- * | LCTRL  | LWIN   | FN     | LALT   | RAISE  | XXXXXX . SPACE  | LOWER  | RALT   | RWIN   | MENU   | RCTRL  | LEFT   | DOWN   | RIGHT  |
+ * | LCTRL  | LWIN   | FN     | LALT   | UPPER  | XXXXXX . SPACE  | LOWER  | SHIFT  | RALT   | APP    | RCTRL  | LEFT   | DOWN   | RIGHT  |
  * '--------------------------------------------------------------------------------------------------------------------------------------'
  */
 
- [LAYER_COLEMAK]      = { /* COLEMAK */
+ [LAYER_COLEMAK]      = { // COLEMAK
   { KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_BSPC  },
   { KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL   },
   { KC_BSPC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, KC_ENT,  KC_ENT,  KC_PGUP  },
   { KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, KC_RSFT, KC_UP,   KC_PGDN  },
-  { KC_LCTL, KC_LGUI, M_FUNCT, KC_LALT, M_RAISE, KC_SPC,  KC_SPC,  M_LOWER, KC_RALT, KC_RGUI, KC_MENU, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT  },
- },
+  { KC_LCTL, KC_LGUI, M_FUNCT, KC_LALT, M_UPPER, KC_SPC,  KC_SPC,  M_LOWER, OS_SHFT, KC_RALT, KC_APP,  KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT  },
+},
 
 /* DVORAK
  * .---------------------------------------------------------------------------------------------------------------------- 2u ------------.
@@ -136,35 +143,63 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ---------------------+--------|
  * | LSHIFT | ;      | Q      | J      | K      | X      | B      | M      | W      | V      | Z      | XXXXXX . RSHIFT | UP     | PG DN  |
  * |--------+--------+--------+--------+--------+- 2u ------------+--------+--------+--------+--------+-----------------+--------+--------|
- * | LCTRL  | LWIN   | FN     | LALT   | RAISE  | XXXXXX . SPACE  | LOWER  | RALT   | RWIN   | MENU   | RCTRL  | LEFT   | DOWN   | RIGHT  |
+ * | LCTRL  | LWIN   | FN     | LALT   | UPPER  | XXXXXX . SPACE  | LOWER  | SHIFT  | RALT   | APP    | RCTRL  | LEFT   | DOWN   | RIGHT  |
  * '--------------------------------------------------------------------------------------------------------------------------------------'
  */
 
- [LAYER_DVORAK]       = { /* DVORAK */
+ [LAYER_DVORAK]       = { // DVORAK
   { KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_LBRC, KC_RBRC, KC_BSPC, KC_BSPC  },
   { KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_SLSH, KC_EQL,  KC_BSLS, KC_DEL   },
   { KC_CAPS, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_MINS, KC_ENT,  KC_ENT,  KC_PGUP  },
   { KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_RSFT, KC_RSFT, KC_UP,   KC_PGDN  },
-  { KC_LCTL, KC_LGUI, M_FUNCT, KC_LALT, M_RAISE, KC_SPC,  KC_SPC,  M_LOWER, KC_RALT, KC_RGUI, KC_MENU, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT  },
+  { KC_LCTL, KC_LGUI, M_FUNCT, KC_LALT, M_UPPER, KC_SPC,  KC_SPC,  M_LOWER, OS_SHFT, KC_RALT, KC_APP,  KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT  },
  },
 
- [LAYER_RAISE]        = { /* RAISED */
-  { KC_TILD, KC_PSCR, KC_PAUS, KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  ________________  },
-  { _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_INS   },
-  { _______, KC_F5,   KC_F6,   KC_F7,   KC_F8,   _______, _______, _______, _______, _______, _______, _______, ________________, KC_HOME  },
-  { _______, KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, _______, _______, _______, _______, _______, ________________, _______, KC_END   },
+/* UPPER
+ * .---------------------------------------------------------------------------------------------------------------------- 2u ------------.
+ * | PRINT  | XXXXXX | XXXXXX | XXXXXX | XXXXXX | XXXXXX | XXXXXX | NUM LK | /      | *      | -      | NUM LK | SCR LK | XXXXXX . PAUSE  |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------|
+ * |        | F1     | F2     | F3     | F4     |        |        | 7      | 8      | 9      | +      | ~      |        |        | INS    |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ------------+--------|
+ * | CAP LK | F5     | F6     | F7     | F8     |        |        | 4      | 5      | 6      | +      | `      | XXXXXX .        | HOME   |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ---------------------+--------|
+ * |        | F9     | F10    | F11    | F12    |        |        | 1      | 2      | 3      | ENTER  | XXXXXX .        |        | END    |
+ * |--------+--------+--------+--------+--------+- 2u ------------+--------+--------+--------+--------+-----------------+--------+--------|
+ * |        |        |        |        |        | 0               |        | RALT   | .      | ENTER  |        |        |        |        |
+ * '--------------------------------------------------------------------------------------------------------------------------------------'
+ */
+
+ [LAYER_UPPER]        = { // UPPER
+  { KC_PSCR, M_BRTOG, M_BSPDU, M_BSPDD, M_BDFLT, XXXXXXX, XXXXXXX, KC_NLCK, KC_PSLS, KC_PAST, XXXXXXX, XXXXXXX, KC_SLCK, KC_PAUS, KC_PAUS  },
+  { _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   XXXXXXX, XXXXXXX, KC_KP_7, KC_KP_8, KC_KP_9, KC_PMNS, _______, _______, _______, KC_INS   },
+  { KC_CAPS, KC_F5,   KC_F6,   KC_F7,   KC_F8,   XXXXXXX, XXXXXXX, KC_KP_4, KC_KP_5, KC_KP_6, KC_PPLS, _______, ________________, KC_HOME  },
+  { _______, KC_F9,   KC_F10,  KC_F11,  KC_F12,  XXXXXXX, XXXXXXX, KC_KP_1, KC_KP_2, KC_KP_3, KC_PENT, ________________, _______, KC_END   },
+  { _______, _______, _______, _______, _______, KC_KP_0, KC_KP_0, _______, KC_RALT, KC_PDOT, KC_PENT, _______, _______, _______, _______  },
+ },
+
+/* LOWER
+ * .---------------------------------------------------------------------------------------------------------------------- 2u ------------.
+ * |        | F1     | F2     | F3     | F4     | F5     | F6     | F7     | F8     | F9     | F10    | F11    | F12    | XXXXXX . BACKSP |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------|
+ * |        | $      | {      | [      | (      | %      | #      | )      | ]      | }      | @      |        |        |        | INS    |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ------------+--------|
+ * |        | ^      | *      | +      | -      | ;      | :      | _      | '      | "      | `      |        | XXXXXX .        | HOME   |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ---------------------+--------|
+ * |        | |      | &      | !      | ~      | /      | \      | =      | <      | >      | ?      | XXXXXX .        |        | END    |
+ * |--------+--------+--------+--------+--------+- 2u ------------+--------+--------+--------+--------+-----------------+--------+--------|
+ * |        |        |        |        |        |                 |        |        |        |        |        |        |        |        |
+ * '--------------------------------------------------------------------------------------------------------------------------------------'
+ */
+
+ [LAYER_LOWER]        = { // LOWER
+  { _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  ________________  },
+  { _______, KC_DLR,  KC_LCBR, KC_LBRC, KC_LPRN, KC_PERC, KC_HASH, KC_RPRN, KC_RBRC, KC_RCBR, KC_AT,   _______, _______, _______, KC_INS   },
+  { _______, KC_CIRC, KC_ASTR, KC_PPLS, KC_PMNS, KC_SCLN, KC_COLN, KC_UNDS, KC_QUOT, KC_DQT,  KC_GRV,  _______, ________________, KC_HOME  },
+  { _______, KC_PIPE, KC_AMPR, KC_EXLM, KC_TILD, KC_SLSH, KC_BSLS, KC_EQL,  KC_LT,   KC_GT,   KC_QUES, ________________, _______, KC_END   },
   { _______, _______, _______, _______, _______, ________________, _______, _______, _______, _______, _______, _______, _______, _______  },
  },
 
- [LAYER_LOWER]        = { /* LOWERED */
-  { KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  ________________  },
-  { _______, KC_F13,  KC_F14,  KC_F15,  KC_F16,  _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_INS   },
-  { _______, KC_F17,  KC_F18,  KC_F19,  KC_F20,  _______, _______, _______, _______, _______, _______, _______, ________________, KC_HOME  },
-  { _______, KC_F21,  KC_F22,  KC_F23,  KC_F24,  _______, _______, _______, _______, _______, _______, ________________, _______, KC_END   },
-  { _______, _______, _______, _______, _______, KC_BSPC, KC_BSPC, _______, _______, _______, _______, _______, _______, _______, _______  },
- },
-
- [LAYER_FUNCTION]     = { /* FUNCTION */
+ [LAYER_FUNCTION]     = { // FUNCTION
   { KC_NLCK, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  ________________  },
   { KC_SLCK, KC_F13,  KC_F14,  KC_F15,  KC_F16,  KC_F17,  KC_F18,  KC_F19,  KC_F20,  KC_F21,  KC_F22,  KC_F23,  KC_F24,  _______, KC_PAUS  },
   { KC_CAPS, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, ________________, KC_PSCR  },
@@ -174,7 +209,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 #ifdef MOUSEKEY_ENABLE
 
- [LAYER_MOUSE]        = { /* MOUSE */
+ [LAYER_MOUSE]        = { // MOUSE
   { _______, KC_ACL0, KC_ACL1, KC_ACL2, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXXXXXXXXXXX  },
   { XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX  },
   { XXXXXXX, KC_BTN5, KC_BTN4, KC_BTN3, KC_BTN2, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXXXXXXXXXXX, KC_WH_U  },
@@ -184,25 +219,25 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 #endif
 
- [LAYER_MUSIC]        = { /* MUSIC */
+ [LAYER_MUSIC]        = { // MUSIC
   { XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX  },
   { XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX  },
   { XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX  },
   { XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX  },
-  { XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, M_RAISE, XXXXXXX, XXXXXXX, M_LOWER, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX  },
+  { XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, M_UPPER, XXXXXXX, XXXXXXX, M_LOWER, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX  },
  },
 
- [LAYER_ADJUST]       = { /* ADJUST */
-  { _______, TIMBR_1, TIMBR_2, TIMBR_3, TIMBR_4, TMPO_UP, TMPO_DN, TMPO_DF, _______, MUS_ON,  MUS_OFF, AUD_ON,  AUD_OFF, ________________  },
+ [LAYER_ADJUST]       = { // ADJUST
+  { _______, TIMBR_1, TIMBR_2, TIMBR_3, TIMBR_4, TMPO_UP, TMPO_DN, TMPO_DF, _______, _______, _______, MUS_TOG, AUD_TOG, ________________  },
   { _______, M_QWRTY, M_COLMK, M_DVORK, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______  },
   { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, ________________, _______  },
-  { _______, _______, _______, _______, _______, RESET,   _______, M_MOUSE, _______, _______, _______, ________________, VC_UP,   _______  },
+  { _______, _______, _______, _______, M_BACKL, RESET,   _______, M_MOUSE, _______, _______, _______, ________________, VC_UP,   _______  },
   { _______, _______, _______, _______, _______, ________________, _______, _______, _______, _______, _______, _______, VC_DOWN, _______  },
  },
 
 
 /*
- [LAYER_EMPTY]        = {
+ [LAYER_EMPTY]        = { // LAYER
   { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, ________________  },
   { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______  },
   { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, ________________, _______  },
@@ -241,6 +276,7 @@ void persistant_default_layer_set(uint16_t default_layer)
 }
 
 const uint16_t PROGMEM fn_actions[] = {
+    [0] = ACTION_MODS_ONESHOT(MOD_LSFT),
 };
 
 const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
@@ -250,13 +286,41 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
     switch(id)
     {
 
+        case MACRO_BREATH_TOGGLE:
+            if (record->event.pressed)
+            {
+                breathing_toggle();
+            }
+            break;
+
+        case MACRO_BREATH_SPEED_INC:
+            if (record->event.pressed)
+            {
+                breathing_speed_inc(1);
+            }
+            break;
+
+        case MACRO_BREATH_SPEED_DEC:
+            if (record->event.pressed)
+            {
+                breathing_speed_dec(1);
+            }
+            break;
+
+        case MACRO_BREATH_DEFAULT:
+            if (record->event.pressed)
+            {
+                breathing_defaults();
+            }
+            break;
+
         case MACRO_QWERTY:
             if (record->event.pressed)
             {
                 persistant_default_layer_set(1UL<<LAYER_QWERTY);
-				#ifdef AUDIO_ENABLE
-                	PLAY_NOTE_ARRAY(tone_qwerty, false, STACCATO);
-				#endif /* AUDIO_ENABLE */
+                #ifdef AUDIO_ENABLE
+                    PLAY_NOTE_ARRAY(tone_qwerty, false, STACCATO);
+                #endif /* AUDIO_ENABLE */
             }
             break;
 
@@ -264,9 +328,9 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
             if (record->event.pressed)
             {
                 persistant_default_layer_set(1UL<<LAYER_COLEMAK);
-				#ifdef AUDIO_ENABLE
-                	PLAY_NOTE_ARRAY(tone_colemak, false, STACCATO);
-				#endif /* AUDIO_ENABLE */
+                #ifdef AUDIO_ENABLE
+                    PLAY_NOTE_ARRAY(tone_colemak, false, STACCATO);
+                #endif /* AUDIO_ENABLE */
             }
             break;
 
@@ -274,22 +338,24 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
             if (record->event.pressed)
             {
                 persistant_default_layer_set(1UL<<LAYER_DVORAK);
-				#ifdef AUDIO_ENABLE
-    	            PLAY_NOTE_ARRAY(tone_dvorak, false, STACCATO);
-				#endif /* AUDIO_ENABLE */
+                #ifdef AUDIO_ENABLE
+                    PLAY_NOTE_ARRAY(tone_dvorak, false, STACCATO);
+                #endif /* AUDIO_ENABLE */
             }
             break;
 
-        case MACRO_RAISE:
+        case MACRO_UPPER:
             if (record->event.pressed)
             {
-                layer_on(LAYER_RAISE);
-                update_tri_layer(LAYER_LOWER, LAYER_RAISE, LAYER_ADJUST);
+                layer_on(LAYER_UPPER);
+                breathing_speed_set(2);
+                breathing_pulse();
+                update_tri_layer(LAYER_LOWER, LAYER_UPPER, LAYER_ADJUST);
             }
             else
             {
-                layer_off(LAYER_RAISE);
-                update_tri_layer(LAYER_LOWER, LAYER_RAISE, LAYER_ADJUST);
+                layer_off(LAYER_UPPER);
+                update_tri_layer(LAYER_LOWER, LAYER_UPPER, LAYER_ADJUST);
             }
             break;
 
@@ -297,22 +363,28 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
             if (record->event.pressed)
             {
                 layer_on(LAYER_LOWER);
-                update_tri_layer(LAYER_LOWER, LAYER_RAISE, LAYER_ADJUST);
+                breathing_speed_set(2);
+                breathing_pulse();
+                update_tri_layer(LAYER_LOWER, LAYER_UPPER, LAYER_ADJUST);
             }
             else
             {
                 layer_off(LAYER_LOWER);
-                update_tri_layer(LAYER_LOWER, LAYER_RAISE, LAYER_ADJUST);
+                update_tri_layer(LAYER_LOWER, LAYER_UPPER, LAYER_ADJUST);
             }
             break;
 
         case MACRO_FUNCTION:
             if (record->event.pressed)
             {
+                breathing_speed_set(3);
+                breathing_enable();
                 layer_on(LAYER_FUNCTION);
             }
             else
             {
+                breathing_speed_set(1);
+                breathing_self_disable();
                 layer_off(LAYER_FUNCTION);
             }
             break;
@@ -362,42 +434,34 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
             }
             break;
 
-        case MACRO_AUDIO_OFF:
+        case MACRO_AUDIO_TOGGLE:
             if (record->event.pressed)
             {
-                #ifdef AUDIO_ENABLE
-                    audio_off();
-                #endif
+                    if (is_audio_on())
+                    {
+                        audio_off();
+                    }
+                    else
+                    {
+                        audio_on();
+                        PLAY_NOTE_ARRAY(tone_audio_on, false, STACCATO);
+                    }
             }
             break;
 
-        case MACRO_AUDIO_ON:
+        case MACRO_MUSIC_TOGGLE:
             if (record->event.pressed)
             {
-                #ifdef AUDIO_ENABLE
-                    audio_on();
-                PLAY_NOTE_ARRAY(tone_audio_on, false, STACCATO);
-                #endif
-            }
-            break;
-
-        case MACRO_MUSIC_ON:
-            if (record->event.pressed)
-            {
-                #ifdef AUDIO_ENABLE
+                    if (IS_LAYER_ON(LAYER_MUSIC))
+                    {
+                        layer_off(LAYER_MUSIC);
+                        stop_all_notes();
+                    }
+                    else
+                    {
                     PLAY_NOTE_ARRAY(tone_music_on, false, STACCATO);
                     layer_on(LAYER_MUSIC);
-                #endif
-            }
-            break;
-
-        case MACRO_MUSIC_OFF:
-            if (record->event.pressed)
-            {
-                #ifdef AUDIO_ENABLE
-                    layer_off(LAYER_MUSIC);
-                    stop_all_notes();
-                #endif
+                    }
             }
             break;
 
@@ -423,6 +487,14 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
 
 #endif /* AUDIO_ENABLE */
 
+#ifdef BACKLIGHT_ENABLE
+        case MACRO_BACKLIGHT:
+            if (record->event.pressed)
+            {
+                backlight_step();
+            }
+#endif
+
         default:
             break;
 
@@ -467,39 +539,39 @@ void led_set_user(uint8_t usb_led)
 
     _delay_ms(10); // gets rid of tick
 
-	if (!is_playing_notes())
-	{
-	    if ((usb_led & (1<<USB_LED_CAPS_LOCK)) && !(old_usb_led & (1<<USB_LED_CAPS_LOCK)))
-	    {
-	            // If CAPS LK LED is turning on...
-	            PLAY_NOTE_ARRAY(tone_caps_on,  false, LEGATO);
-	    }
-	    else if (!(usb_led & (1<<USB_LED_CAPS_LOCK)) && (old_usb_led & (1<<USB_LED_CAPS_LOCK)))
-	    {
-	            // If CAPS LK LED is turning off...
-	            PLAY_NOTE_ARRAY(tone_caps_off, false, LEGATO);
-	    }
-	    else if ((usb_led & (1<<USB_LED_NUM_LOCK)) && !(old_usb_led & (1<<USB_LED_NUM_LOCK)))
-	    {
-	            // If NUM LK LED is turning on...
-	            PLAY_NOTE_ARRAY(tone_numlk_on,  false, LEGATO);
-	    }
-	    else if (!(usb_led & (1<<USB_LED_NUM_LOCK)) && (old_usb_led & (1<<USB_LED_NUM_LOCK)))
-	    {
-	            // If NUM LED is turning off...
-	            PLAY_NOTE_ARRAY(tone_numlk_off, false, LEGATO);
-	    }
-	    else if ((usb_led & (1<<USB_LED_SCROLL_LOCK)) && !(old_usb_led & (1<<USB_LED_SCROLL_LOCK)))
-	    {
-	            // If SCROLL LK LED is turning on...
-	            PLAY_NOTE_ARRAY(tone_scroll_on,  false, LEGATO);
-	    }
-	    else if (!(usb_led & (1<<USB_LED_SCROLL_LOCK)) && (old_usb_led & (1<<USB_LED_SCROLL_LOCK)))
-	    {
-	            // If SCROLL LED is turning off...
-	            PLAY_NOTE_ARRAY(tone_scroll_off, false, LEGATO);
-	    }
-	}
+    if (!is_playing_notes())
+    {
+        if ((usb_led & (1<<USB_LED_CAPS_LOCK)) && !(old_usb_led & (1<<USB_LED_CAPS_LOCK)))
+        {
+                // If CAPS LK LED is turning on...
+                PLAY_NOTE_ARRAY(tone_caps_on,  false, LEGATO);
+        }
+        else if (!(usb_led & (1<<USB_LED_CAPS_LOCK)) && (old_usb_led & (1<<USB_LED_CAPS_LOCK)))
+        {
+                // If CAPS LK LED is turning off...
+                PLAY_NOTE_ARRAY(tone_caps_off, false, LEGATO);
+        }
+        else if ((usb_led & (1<<USB_LED_NUM_LOCK)) && !(old_usb_led & (1<<USB_LED_NUM_LOCK)))
+        {
+                // If NUM LK LED is turning on...
+                PLAY_NOTE_ARRAY(tone_numlk_on,  false, LEGATO);
+        }
+        else if (!(usb_led & (1<<USB_LED_NUM_LOCK)) && (old_usb_led & (1<<USB_LED_NUM_LOCK)))
+        {
+                // If NUM LED is turning off...
+                PLAY_NOTE_ARRAY(tone_numlk_off, false, LEGATO);
+        }
+        else if ((usb_led & (1<<USB_LED_SCROLL_LOCK)) && !(old_usb_led & (1<<USB_LED_SCROLL_LOCK)))
+        {
+                // If SCROLL LK LED is turning on...
+                PLAY_NOTE_ARRAY(tone_scroll_on,  false, LEGATO);
+        }
+        else if (!(usb_led & (1<<USB_LED_SCROLL_LOCK)) && (old_usb_led & (1<<USB_LED_SCROLL_LOCK)))
+        {
+                // If SCROLL LED is turning off...
+                PLAY_NOTE_ARRAY(tone_scroll_off, false, LEGATO);
+        }
+    }
 
     old_usb_led = usb_led;
 }
@@ -514,7 +586,8 @@ void play_startup_tone()
 void play_goodbye_tone()
 {
     PLAY_NOTE_ARRAY(tone_my_goodbye, false, STACCATO);
-    _delay_ms(1000);
+    _delay_ms(2000);
+    stop_all_notes();
 }
 
 #endif /* AUDIO_ENABLE */
\ No newline at end of file
diff --git a/keyboard/atomic/keymaps/pvc/makefile.mk b/keyboard/atomic/keymaps/pvc/makefile.mk
index eefa42855..f7798b09d 100644
--- a/keyboard/atomic/keymaps/pvc/makefile.mk
+++ b/keyboard/atomic/keymaps/pvc/makefile.mk
@@ -4,7 +4,7 @@ EXTRAKEY_ENABLE  = yes # Audio control and System control(+450)
 CONSOLE_ENABLE   = no  # Console for debug(+400)
 COMMAND_ENABLE   = yes # Commands for debug and configuration
 NKRO_ENABLE      = yes # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
-BACKLIGHT_ENABLE = no  # Enable keyboard backlight functionality
+BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
 MIDI_ENABLE      = no  # MIDI controls
 AUDIO_ENABLE     = yes # Audio output on port C6
 UNICODE_ENABLE   = no  # Unicode
diff --git a/keyboard/planck/keymaps/experimental/README.md b/keyboard/planck/keymaps/experimental/README.md
new file mode 100644
index 000000000..de9680b49
--- /dev/null
+++ b/keyboard/planck/keymaps/experimental/README.md
@@ -0,0 +1,2 @@
+# The Default Planck Layout
+
diff --git a/keyboard/planck/keymaps/experimental/keymap.c b/keyboard/planck/keymaps/experimental/keymap.c
new file mode 100644
index 000000000..fc3ac4a97
--- /dev/null
+++ b/keyboard/planck/keymaps/experimental/keymap.c
@@ -0,0 +1,383 @@
+// This is the canonical layout file for the Quantum project. If you want to add another keyboard,
+// this is the style you want to emulate.
+
+#include "planck.h"
+#include "action_layer.h"
+#ifdef AUDIO_ENABLE
+  #include "audio.h"
+#endif
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _MUSIC 5
+#define _PLOVER 6
+#define _ADJUST 16
+
+// Macro name shortcuts
+#define QWERTY M(_QWERTY)
+#define COLEMAK M(_COLEMAK)
+#define DVORAK M(_DVORAK)
+#define LOWER M(_LOWER)
+#define RAISE M(_RAISE)
+#define M_BL 5
+#define AUD_OFF M(6)
+#define AUD_ON M(7)
+#define MUS_OFF M(8)
+#define MUS_ON M(9)
+#define VC_IN M(10)
+#define VC_DE M(11)
+#define PLOVER M(12)
+#define EXT_PLV M(13)
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt  | GUI  |Lower |    Space    |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = {
+  {KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC},
+  {KC_ESC,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT},
+  {KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT },
+  {M(M_BL), KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT}
+},
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt  | GUI  |Lower |    Space    |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = {
+  {KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC},
+  {KC_ESC,  KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT},
+  {KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT },
+  {M(M_BL), KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT}
+},
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt  | GUI  |Lower |    Space    |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = {
+  {KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC},
+  {KC_ESC,  KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH},
+  {KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_ENT },
+  {M(M_BL), KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT}
+},
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      |      |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = {
+  {KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC},
+  {KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE},
+  {_______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, _______, _______, _______, _______},
+  {_______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY}
+},
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      |      |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = {
+  {KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC},
+  {KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS},
+  {_______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, _______, _______, _______, _______},
+  {_______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY}
+},
+
+/* Music (reserved for process_action_user)
+ *
+ */
+[_MUSIC] = {
+  {XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX},
+  {XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX},
+  {XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX},
+  {XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, LOWER,   XXXXXXX, XXXXXXX, RAISE,   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX}
+},
+
+/* Plover layer (http://opensteno.org)
+ * ,-----------------------------------------------------------------------------------.
+ * |   #  |   #  |   #  |   #  |   #  |   #  |   #  |   #  |   #  |   #  |   #  |   #  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |   S  |   T  |   P  |   H  |   *  |   *  |   F  |   P  |   L  |   T  |   D  |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |   S  |   K  |   W  |   R  |   *  |   *  |   R  |   B  |   G  |   S  |   Z  |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Exit |      |      |   A  |   O  |             |   E  |   U  |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+
+[_PLOVER] = {
+  {KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1   },
+  {XXXXXXX, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC},
+  {XXXXXXX, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT},
+  {EXT_PLV, XXXXXXX, XXXXXXX, KC_C,    KC_V,    XXXXXXX, XXXXXXX, KC_N,    KC_M,    XXXXXXX, XXXXXXX, XXXXXXX}
+},
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|Plover|      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |Voice-|Voice+|Mus on|Musoff|      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = {
+  {_______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL},
+  {_______, _______, _______, AUD_ON,  AUD_OFF, AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  PLOVER,  _______},
+  {_______, VC_DE,   VC_IN,   MUS_ON,  MUS_OFF, _______, _______, _______, _______, _______, _______, _______},
+  {_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______}
+}
+
+
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_startup[][2] = {
+  {440.0*pow(2.0,(31)/12.0), 12},
+  {440.0*pow(2.0,(28)/12.0), 8},
+  {440.0*pow(2.0,(19)/12.0), 8},
+  {440.0*pow(2.0,(24)/12.0), 8},
+  {440.0*pow(2.0,(28)/12.0), 20}
+};
+
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+float tone_plover[][2]     = SONG(PLOVER_SOUND);
+float tone_plover_gb[][2]  = SONG(PLOVER_GOODBYE_SOUND);
+
+float music_scale[][2] = SONG(MUSIC_SCALE_SOUND);
+float goodbye[][2] = SONG(GOODBYE_SOUND);
+#endif
+
+
+void persistant_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+      switch(id) {
+        case _QWERTY:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
+            #endif
+            persistant_default_layer_set(1UL<<_QWERTY);
+          }
+          break;
+        case _COLEMAK:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              PLAY_NOTE_ARRAY(tone_colemak, false, 0);
+            #endif
+            persistant_default_layer_set(1UL<<_COLEMAK);
+          }
+          break;
+        case _DVORAK:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
+            #endif
+            persistant_default_layer_set(1UL<<_DVORAK);
+          }
+          break;
+        case _LOWER:
+          if (record->event.pressed) {
+            layer_on(_LOWER);
+                breathing_speed_set(2);
+                breathing_pulse();
+            update_tri_layer(_LOWER, _RAISE, _ADJUST);
+          } else {
+            layer_off(_LOWER);
+            update_tri_layer(_LOWER, _RAISE, _ADJUST);
+          }
+          break;
+        case _RAISE:
+          if (record->event.pressed) {
+            layer_on(_RAISE);
+                breathing_speed_set(2);
+                breathing_pulse();
+            update_tri_layer(_LOWER, _RAISE, _ADJUST);
+          } else {
+            layer_off(_RAISE);
+            update_tri_layer(_LOWER, _RAISE, _ADJUST);
+          }
+          break;
+        case M_BL:
+          if (record->event.pressed) {
+            register_code(KC_RSFT);
+            #ifdef BACKLIGHT_ENABLE
+              backlight_step();
+            #endif
+          } else {
+            unregister_code(KC_RSFT);
+          }
+        break;
+        case 6:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              audio_off();
+            #endif
+          }
+        break;
+        case 7:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              audio_on();
+              PLAY_NOTE_ARRAY(tone_startup, false, 0);
+            #endif
+          }
+        break;
+        case 8:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              layer_off(_MUSIC);
+              stop_all_notes();
+            #endif
+          }
+        break;
+        case 9:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              PLAY_NOTE_ARRAY(music_scale, false, 0);
+              layer_on(_MUSIC);
+            #endif
+          }
+        break;
+        case 10:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              voice_iterate();
+              PLAY_NOTE_ARRAY(music_scale, false, 0);
+            #endif
+          }
+        break;
+        case 11:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              voice_deiterate();
+              PLAY_NOTE_ARRAY(music_scale, false, 0);
+            #endif
+          }
+        break;
+        case 12:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              stop_all_notes();
+              PLAY_NOTE_ARRAY(tone_plover, false, 0);
+            #endif
+            layer_off(_RAISE);
+            layer_off(_LOWER);
+            layer_off(_ADJUST);
+            layer_off(_MUSIC);
+            layer_on(_PLOVER);
+            if (!eeconfig_is_enabled()) {
+                eeconfig_init();
+            }
+            keymap_config.raw = eeconfig_read_keymap();
+            keymap_config.nkro = 1;
+            eeconfig_update_keymap(keymap_config.raw);
+          }
+        break;
+        case 13:
+          if (record->event.pressed) {
+            #ifdef AUDIO_ENABLE
+              PLAY_NOTE_ARRAY(tone_plover_gb, false, 0);
+            #endif
+            layer_off(_PLOVER);
+          }
+        break;
+
+      }
+    return MACRO_NONE;
+};
+
+void matrix_init_user(void) {
+  #ifdef AUDIO_ENABLE
+    _delay_ms(20); // stops the tick
+    PLAY_NOTE_ARRAY(tone_startup, false, 0);
+  #endif
+}
+
+#ifdef AUDIO_ENABLE
+void play_goodbye_tone()
+{
+  PLAY_NOTE_ARRAY(goodbye, false, 0);
+  _delay_ms(150);
+}
+
+uint8_t starting_note = 0x0C;
+int offset = 0;
+
+void process_action_user(keyrecord_t *record) {
+
+  if (IS_LAYER_ON(_MUSIC)) {
+    if (record->event.pressed) {
+        play_note(((double)220.0)*pow(2.0, -4.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row)), 0xF);
+    } else {
+        stop_note(((double)220.0)*pow(2.0, -4.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row)));
+    }
+  }
+
+}
+#endif
diff --git a/keyboard/planck/keymaps/experimental/makefile.mk b/keyboard/planck/keymaps/experimental/makefile.mk
new file mode 100644
index 000000000..99fbfbd0b
--- /dev/null
+++ b/keyboard/planck/keymaps/experimental/makefile.mk
@@ -0,0 +1,2 @@
+AUDIO_ENABLE = yes
+NKRO_ENABLE = yes
\ No newline at end of file
diff --git a/keyboard/planck/keymaps/pvc/keymap.c b/keyboard/planck/keymaps/pvc/keymap.c
index 830b00a4c..177f04484 100644
--- a/keyboard/planck/keymaps/pvc/keymap.c
+++ b/keyboard/planck/keymaps/pvc/keymap.c
@@ -38,6 +38,7 @@
 #define MACRO_AUDIO_OFF     17
 #define MACRO_INC_VOICE     18
 #define MACRO_DEC_VOICE     19
+#define MACRO_BACKLIGHT     20
 
 #define M_QWRTY             M(MACRO_QWERTY)
 #define M_COLMK             M(MACRO_COLEMAK)
@@ -53,6 +54,7 @@
 #define TMPO_UP             M(MACRO_TEMPO_U)
 #define TMPO_DN             M(MACRO_TEMPO_D)
 #define TMPO_DF             M(MACRO_TONE_DEFAULT)
+#define M_BACKL             M(MACRO_BACKLIGHT)
 
 
 #define MUS_ON              M(MACRO_MUSIC_ON)
@@ -217,7 +219,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [LAYER_ADJUST]       = { /* ADJUST */
   { _______, TIMBR_1, TIMBR_2, TIMBR_3, TIMBR_4, TMPO_UP, TMPO_DN, TMPO_DF, MUS_ON,  MUS_OFF, AUD_ON,  AUD_OFF  },
   { _______, M_QWRTY, M_COLMK, M_DVORK, _______, _______, _______, _______, _______, _______, _______, _______  },
-  { _______, _______, _______, _______, _______, RESET,   _______, M_MOUSE, _______, _______, _______, _______  },
+  { _______, _______, _______, _______, M_BACKL, RESET,   _______, M_MOUSE, _______, _______, _______, _______  },
   { _______, _______, _______, _______, _______, _______, _______, _______, VC_UP,   VC_DOWN, _______, _______  },
  },
 
@@ -337,6 +339,15 @@ const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
             }
             break;
 
+
+#ifdef BACKLIGHT_ENABLE
+		case MACRO_BACKLIGHT:
+			if (record->event.pressed)
+			{
+				backlight_step();
+			}
+#endif
+
 #ifdef MOUSEKEY_ENABLE
 
         case MACRO_MOUSE:
diff --git a/keyboard/planck/keymaps/pvc/makefile.mk b/keyboard/planck/keymaps/pvc/makefile.mk
index b3f1b9e51..f7798b09d 100644
--- a/keyboard/planck/keymaps/pvc/makefile.mk
+++ b/keyboard/planck/keymaps/pvc/makefile.mk
@@ -1,12 +1,12 @@
 BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
 MOUSEKEY_ENABLE  = yes # Mouse keys(+4700)
 EXTRAKEY_ENABLE  = yes # Audio control and System control(+450)
-CONSOLE_ENABLE   = yes # Console for debug(+400)
+CONSOLE_ENABLE   = no  # Console for debug(+400)
 COMMAND_ENABLE   = yes # Commands for debug and configuration
 NKRO_ENABLE      = yes # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
-BACKLIGHT_ENABLE = no  # Enable keyboard backlight functionality
+BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
 MIDI_ENABLE      = no  # MIDI controls
-AUDIO_ENABLE     = no  # Audio output on port C6
+AUDIO_ENABLE     = yes # Audio output on port C6
 UNICODE_ENABLE   = no  # Unicode
 BLUETOOTH_ENABLE = no  # Enable Bluetooth with the Adafruit EZ-Key HID
 RGBLIGHT_ENABLE  = no  # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
diff --git a/keyboard/planck/planck.c b/keyboard/planck/planck.c
index 655850150..446353dbf 100644
--- a/keyboard/planck/planck.c
+++ b/keyboard/planck/planck.c
@@ -9,6 +9,9 @@ void matrix_scan_user(void) {}
 __attribute__ ((weak))
 void process_action_user(keyrecord_t *record) {}
 
+__attribute__ ((weak))
+void led_set_user(uint8_t usb_led) {}
+
 void matrix_init_kb(void) {
 #ifdef BACKLIGHT_ENABLE
 	backlight_init_ports();
@@ -33,8 +36,22 @@ void process_action_kb(keyrecord_t *record) {
 	process_action_user(record);
 }
 
+void led_set_kb(uint8_t usb_led) {
+    // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+
+    led_set_user(usb_led);
+}
+
 #ifdef BACKLIGHT_ENABLE
 #define CHANNEL OCR1C
+#define BREATHING_NO_HALT  0
+#define BREATHING_HALT_OFF 1
+#define BREATHING_HALT_ON  2
+
+static uint8_t breath_intensity;
+static uint8_t breath_speed;
+static uint16_t breathing_index;
+static uint8_t breathing_halt;
 
 void backlight_init_ports()
 {
@@ -60,22 +77,22 @@ void backlight_init_ports()
     TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
 
     backlight_init();
+    breathing_defaults();
 }
 
 void backlight_set(uint8_t level)
 {
+    // Prevent backlight blink on lowest level
+    PORTB &= ~(_BV(PORTB7));
+
     if ( level == 0 )
     {
         // Turn off PWM control on PB7, revert to output low.
         TCCR1A &= ~(_BV(COM1C1));
         CHANNEL = 0x0;
-        // Prevent backlight blink on lowest level
-        PORTB &= ~(_BV(PORTB7));
     }
     else if ( level == BACKLIGHT_LEVELS )
     {
-        // Prevent backlight blink on lowest level
-        PORTB &= ~(_BV(PORTB7));
         // Turn on PWM control of PB7
         TCCR1A |= _BV(COM1C1);
         // Set the brightness
@@ -83,13 +100,205 @@ void backlight_set(uint8_t level)
     }
     else        
     {
-        // Prevent backlight blink on lowest level
-        PORTB &= ~(_BV(PORTB7));
         // Turn on PWM control of PB7
         TCCR1A |= _BV(COM1C1);
         // Set the brightness
         CHANNEL = 0xFFFF >> ((BACKLIGHT_LEVELS - level) * ((BACKLIGHT_LEVELS + 1) / 2));
     }
+    breathing_intensity_default();
 }
 
+
+void breathing_enable(void)
+{
+    if (get_backlight_level() == 0)
+    {
+        breathing_index = 0;
+    }
+    else
+    {
+        // Set breathing_index to be at the midpoint (brightest point)
+        breathing_index = 0x20 << breath_speed;
+    }
+
+    breathing_halt = BREATHING_NO_HALT;
+
+    // Enable breathing interrupt
+    TIMSK1 |= _BV(OCIE1A);
+}
+
+void breathing_pulse(void)
+{
+    if (get_backlight_level() == 0)
+    {
+        breathing_index = 0;
+    }
+    else
+    {
+        // Set breathing_index to be at the midpoint + 1 (brightest point)
+        breathing_index = 0x21 << breath_speed;
+    }
+
+    breathing_halt = BREATHING_HALT_ON;
+
+    // Enable breathing interrupt
+    TIMSK1 |= _BV(OCIE1A);
+}
+
+void breathing_disable(void)
+{
+    // Disable breathing interrupt
+    TIMSK1 &= ~_BV(OCIE1A);
+    backlight_set(get_backlight_level());
+}
+
+void breathing_self_disable(void)
+{
+    if (get_backlight_level() == 0)
+    {
+        breathing_halt = BREATHING_HALT_OFF;
+    }
+    else
+    {
+        breathing_halt = BREATHING_HALT_ON;
+    }
+
+    //backlight_set(get_backlight_level());
+}
+
+void breathing_toggle(void)
+{
+    if (!is_breathing())
+    {
+        if (get_backlight_level() == 0)
+        {
+            breathing_index = 0;
+        }
+        else
+        {
+            // Set breathing_index to be at the midpoint + 1 (brightest point)
+            breathing_index = 0x21 << breath_speed;
+        }
+
+        breathing_halt = BREATHING_NO_HALT;
+    }
+
+    // Toggle breathing interrupt
+    TIMSK1 ^= _BV(OCIE1A);
+
+    // Restore backlight level
+    if (!is_breathing())
+    {
+        backlight_set(get_backlight_level());
+    }
+}
+
+bool is_breathing(void)
+{
+    return (TIMSK1 && _BV(OCIE1A));
+}
+
+void breathing_intensity_default(void)
+{
+    //breath_intensity = (uint8_t)((uint16_t)100 * (uint16_t)get_backlight_level() / (uint16_t)BACKLIGHT_LEVELS);
+    breath_intensity = ((BACKLIGHT_LEVELS - get_backlight_level()) * ((BACKLIGHT_LEVELS + 1) / 2));
+}
+
+void breathing_intensity_set(uint8_t value)
+{
+    breath_intensity = value;
+}
+
+void breathing_speed_default(void)
+{
+    breath_speed = 4;
+}
+
+void breathing_speed_set(uint8_t value)
+{
+    bool is_breathing_now = is_breathing();
+    uint8_t old_breath_speed = breath_speed;
+
+    if (is_breathing_now)
+    {
+        // Disable breathing interrupt
+        TIMSK1 &= ~_BV(OCIE1A);
+    }
+
+    breath_speed = value;
+
+    if (is_breathing_now)
+    {
+        // Adjust index to account for new speed
+        breathing_index = (( (uint8_t)( (breathing_index) >> old_breath_speed ) ) & 0x3F) << breath_speed;
+
+        // Enable breathing interrupt
+        TIMSK1 |= _BV(OCIE1A);
+    }
+
+}
+
+void breathing_speed_inc(uint8_t value)
+{
+    if ((uint16_t)(breath_speed - value) > 10 )
+    {
+        breathing_speed_set(0);
+    }
+    else
+    {
+        breathing_speed_set(breath_speed - value);
+    }
+}
+
+void breathing_speed_dec(uint8_t value)
+{
+    if ((uint16_t)(breath_speed + value) > 10 )
+    {
+        breathing_speed_set(10);
+    }
+    else
+    {
+        breathing_speed_set(breath_speed + value);
+    }
+}
+
+void breathing_defaults(void)
+{
+    breathing_intensity_default();
+    breathing_speed_default();
+    breathing_halt = BREATHING_NO_HALT;
+}
+
+/* Breathing Sleep LED brighness(PWM On period) table
+ * (64[steps] * 4[duration]) / 64[PWM periods/s] = 4 second breath cycle
+ *
+ * http://www.wolframalpha.com/input/?i=%28sin%28+x%2F64*pi%29**8+*+255%2C+x%3D0+to+63
+ * (0..63).each {|x| p ((sin(x/64.0*PI)**8)*255).to_i }
+ */
+static const uint8_t breathing_table[64] PROGMEM = {
+  0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   1,   2,   4,   6,  10,
+ 15,  23,  32,  44,  58,  74,  93, 113, 135, 157, 179, 199, 218, 233, 245, 252,
+255, 252, 245, 233, 218, 199, 179, 157, 135, 113,  93,  74,  58,  44,  32,  23,
+ 15,  10,   6,   4,   2,   1,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+};
+
+ISR(TIMER1_COMPA_vect)
+{
+    // CHANNEL = (pgm_read_byte(&breathing_table[ ( (uint8_t)( (breathing_index++) >> breath_speed ) ) & 0x3F ] )) * breath_intensity;
+
+
+    uint8_t local_index = ( (uint8_t)( (breathing_index++) >> breath_speed ) ) & 0x3F;
+
+    if (((breathing_halt == BREATHING_HALT_ON) && (local_index == 0x20)) || ((breathing_halt == BREATHING_HALT_OFF) && (local_index == 0x3F)))
+    {
+        // Disable breathing interrupt
+        TIMSK1 &= ~_BV(OCIE1A);
+    }
+
+    CHANNEL = (uint16_t)(((uint16_t)pgm_read_byte(&breathing_table[local_index]) * 257)) >> breath_intensity;
+
+}
+
+
+
 #endif
\ No newline at end of file
diff --git a/keyboard/planck/planck.h b/keyboard/planck/planck.h
index c5b59d999..cfd4956bf 100644
--- a/keyboard/planck/planck.h
+++ b/keyboard/planck/planck.h
@@ -45,4 +45,22 @@ void matrix_init_user(void);
 void matrix_scan_user(void);
 void process_action_user(keyrecord_t *record);
 
+void led_set_user(uint8_t usb_led);
+void backlight_init_ports(void);
+
+void breathing_enable(void);
+void breathing_pulse(void);
+void breathing_disable(void);
+void breathing_self_disable(void);
+void breathing_toggle(void);
+bool is_breathing(void);
+
+
+void breathing_defaults(void);
+void breathing_intensity_default(void);
+void breathing_speed_default(void);
+void breathing_speed_set(uint8_t value);
+void breathing_speed_inc(uint8_t value);
+void breathing_speed_dec(uint8_t value);
+
 #endif
diff --git a/quantum/audio/audio.c b/quantum/audio/audio.c
index 3a7f0f556..27b64f8c9 100644
--- a/quantum/audio/audio.c
+++ b/quantum/audio/audio.c
@@ -374,6 +374,10 @@ bool is_playing_notes(void) {
 	return playing_notes;
 }
 
+bool is_audio_on(void) {
+    return (audio_config.enable != 0);
+}
+
 void audio_toggle(void) {
     audio_config.enable ^= 1;
     eeconfig_update_audio(audio_config.raw);
diff --git a/quantum/audio/audio.h b/quantum/audio/audio.h
index 3d706587a..4ba879bbb 100644
--- a/quantum/audio/audio.h
+++ b/quantum/audio/audio.h
@@ -25,6 +25,7 @@ typedef union {
     };
 } audio_config_t;
 
+bool is_audio_on(void);
 void audio_toggle(void);
 void audio_on(void);
 void audio_off(void);
@@ -71,11 +72,11 @@ void stop_note(float freq);
 void stop_all_notes(void);
 void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest);
 
-#define SCALE (int []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \
-						0 + (12*1), 2 + (12*1), 4 + (12*1), 5 + (12*1), 7 + (12*1), 9 + (12*1), 11 + (12*1), \
-						0 + (12*2), 2 + (12*2), 4 + (12*2), 5 + (12*2), 7 + (12*2), 9 + (12*2), 11 + (12*2), \
-						0 + (12*3), 2 + (12*3), 4 + (12*3), 5 + (12*3), 7 + (12*3), 9 + (12*3), 11 + (12*3), \
-						0 + (12*4), 2 + (12*4), 4 + (12*4), 5 + (12*4), 7 + (12*4), 9 + (12*4), 11 + (12*4), }
+#define SCALE (int8_t []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \
+                           0 + (12*1), 2 + (12*1), 4 + (12*1), 5 + (12*1), 7 + (12*1), 9 + (12*1), 11 + (12*1), \
+                           0 + (12*2), 2 + (12*2), 4 + (12*2), 5 + (12*2), 7 + (12*2), 9 + (12*2), 11 + (12*2), \
+                           0 + (12*3), 2 + (12*3), 4 + (12*3), 5 + (12*3), 7 + (12*3), 9 + (12*3), 11 + (12*3), \
+                           0 + (12*4), 2 + (12*4), 4 + (12*4), 5 + (12*4), 7 + (12*4), 9 + (12*4), 11 + (12*4), }
 
 // These macros are used to allow play_notes to play an array of indeterminate
 // length. This works around the limitation of C's sizeof operation on pointers.
diff --git a/quantum/keymap_common.h b/quantum/keymap_common.h
index 8c27e9035..322fda498 100644
--- a/quantum/keymap_common.h
+++ b/quantum/keymap_common.h
@@ -87,8 +87,11 @@ extern const uint16_t fn_actions[];
 #define KC_EXCLAIM  KC_EXLM
 
 #define KC_AT   LSFT(KC_2)      // @
+
+
 #define KC_HASH LSFT(KC_3)      // #
 
+
 #define KC_DLR  LSFT(KC_4)      // $
 #define KC_DOLLAR   KC_DLR
 
@@ -110,11 +113,13 @@ extern const uint16_t fn_actions[];
 #define KC_RPRN LSFT(KC_0)      // )
 #define KC_RIGHT_PAREN  KC_RPRN
 
+
 #define KC_UNDS LSFT(KC_MINS)   // _
 #define KC_UNDERSCORE   KC_UNDS
 
 #define KC_PLUS LSFT(KC_EQL)    // +
 
+
 #define KC_LCBR LSFT(KC_LBRC)   // {
 #define KC_LEFT_CURLY_BRACE KC_LCBR
 
@@ -132,6 +137,19 @@ extern const uint16_t fn_actions[];
 
 #define KC_PIPE LSFT(KC_BSLS)   // |
 
+#define KC_LT LSFT(KC_COMM)     // <
+
+
+#define KC_GT LSFT(KC_DOT)      // >
+
+
+#define KC_QUES LSFT(KC_SLSH)   // ?
+#define KC_QUESTION KC_QUES
+
+
+#define KC_DQT LSFT(KC_QUOT)   // "
+#define KC_DOUBLE_QUOTE KC_DQT
+
 #define KC_DELT KC_DELETE // Del key (four letter code)
 
 // Alias for function layers than expand past FN31
diff --git a/quantum/keymap_midi.h b/quantum/keymap_midi.h
index 795f26380..3a2bf3aff 100644
--- a/quantum/keymap_midi.h
+++ b/quantum/keymap_midi.h
@@ -25,11 +25,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define CHNL(note, channel) (note + (channel << 8))
 
-#define SCALE (int []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \
-						0 + (12*1), 2 + (12*1), 4 + (12*1), 5 + (12*1), 7 + (12*1), 9 + (12*1), 11 + (12*1), \
-						0 + (12*2), 2 + (12*2), 4 + (12*2), 5 + (12*2), 7 + (12*2), 9 + (12*2), 11 + (12*2), \
-						0 + (12*3), 2 + (12*3), 4 + (12*3), 5 + (12*3), 7 + (12*3), 9 + (12*3), 11 + (12*3), \
-						0 + (12*4), 2 + (12*4), 4 + (12*4), 5 + (12*4), 7 + (12*4), 9 + (12*4), 11 + (12*4), }
+#define SCALE (int8_t []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \
+                           0 + (12*1), 2 + (12*1), 4 + (12*1), 5 + (12*1), 7 + (12*1), 9 + (12*1), 11 + (12*1), \
+                           0 + (12*2), 2 + (12*2), 4 + (12*2), 5 + (12*2), 7 + (12*2), 9 + (12*2), 11 + (12*2), \
+                           0 + (12*3), 2 + (12*3), 4 + (12*3), 5 + (12*3), 7 + (12*3), 9 + (12*3), 11 + (12*3), \
+                           0 + (12*4), 2 + (12*4), 4 + (12*4), 5 + (12*4), 7 + (12*4), 9 + (12*4), 11 + (12*4), }
 
 #define N_CN1  (0x600C + (12 * -1) + 0 )
 #define N_CN1S (0x600C + (12 * -1) + 1 )
diff --git a/quantum/quantum.mk b/quantum/quantum.mk
index ff34c463a..5f4c2f045 100644
--- a/quantum/quantum.mk
+++ b/quantum/quantum.mk
@@ -28,9 +28,9 @@ ifeq ($(strip $(MIDI_ENABLE)), yes)
 endif
 
 ifeq ($(strip $(AUDIO_ENABLE)), yes)
-	SRC += $(QUANTUM_DIR)/audio/audio.c
-	SRC += $(QUANTUM_DIR)/audio/voices.c
-	SRC += $(QUANTUM_DIR)/audio/luts.c
+    SRC += $(QUANTUM_DIR)/audio/audio.c
+    SRC += $(QUANTUM_DIR)/audio/voices.c
+    SRC += $(QUANTUM_DIR)/audio/luts.c
 endif
 
 ifeq ($(strip $(UNICODE_ENABLE)), yes)
diff --git a/tmk_core/common/backlight.c b/tmk_core/common/backlight.c
index 2f6fc1cd6..c9e8fd3fd 100644
--- a/tmk_core/common/backlight.c
+++ b/tmk_core/common/backlight.c
@@ -83,3 +83,8 @@ void backlight_level(uint8_t level)
     eeconfig_update_backlight(backlight_config.raw);
     backlight_set(backlight_config.level);
 }
+
+uint8_t get_backlight_level(void)
+{
+    return backlight_config.level;
+}
\ No newline at end of file
diff --git a/tmk_core/common/backlight.h b/tmk_core/common/backlight.h
index 525ec8bbe..f57309267 100644
--- a/tmk_core/common/backlight.h
+++ b/tmk_core/common/backlight.h
@@ -36,5 +36,6 @@ void backlight_toggle(void);
 void backlight_step(void);
 void backlight_set(uint8_t level);
 void backlight_level(uint8_t level);
+uint8_t get_backlight_level(void);
 
 #endif
diff --git a/tmk_core/common/command.c b/tmk_core/common/command.c
index f06abaf7f..9edcc42a0 100644
--- a/tmk_core/common/command.c
+++ b/tmk_core/common/command.c
@@ -357,9 +357,11 @@ static bool command_common(uint8_t code)
             clear_keyboard(); // clear to prevent stuck keys
             print("\n\nJumping to bootloader... ");
             #ifdef AUDIO_ENABLE
+	            stop_all_notes();
                 play_goodbye_tone();
+            #else
+	            _delay_ms(1000);
             #endif
-            _delay_ms(1000);
             bootloader_jump(); // not return
             break;
 
diff --git a/tmk_core/common/nodebug.h b/tmk_core/common/nodebug.h
index 93309ada4..5e18656e5 100644
--- a/tmk_core/common/nodebug.h
+++ b/tmk_core/common/nodebug.h
@@ -16,10 +16,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #ifndef NODEBUG_H
-#define NODEBUG_H 1
+#define NODEBUG_H
 
-#define NO_DEBUG
-#include "debug.h"
-#undef NO_DEBUG
+#ifndef NO_DEBUG
+	#define NO_DEBUG
+	#include "debug.h"
+	#undef NO_DEBUG
+#else
+	#include "debug.h"
+#endif
 
 #endif