5 files changed, 118 insertions, 35 deletions

diff --git a/quantum/audio.c b/quantum/audio.c
index 6bd6532a3..e0413051a 100644
--- a/quantum/audio.c
+++ b/quantum/audio.c
@@ -4,7 +4,7 @@
 #include <avr/pgmspace.h>
 #include <avr/interrupt.h>
 #include <avr/io.h>
-
+#include "print.h"
 #include "audio.h"
 #include "keymap_common.h"
 
@@ -57,9 +57,11 @@ bool notes = false;
 bool note = false;
 float note_frequency = 0;
 float note_length = 0;
+float note_tempo = TEMPO_DEFAULT;
+float note_timbre = TIMBRE_DEFAULT;
 uint16_t note_position = 0;
 float (* notes_pointer)[][2];
-uint8_t notes_length;
+uint8_t notes_count;
 bool notes_repeat;
 float notes_rest;
 bool note_resting = false;
@@ -255,7 +257,8 @@ ISR(TIMER3_COMPA_vect) {
                     place = 0.0;
                 }
                 ICR3 = (int)(((double)F_CPU) / (frequencies[voice_place] * CPU_PRESCALER)); // Set max to the period
-                OCR3A = (int)(((double)F_CPU) / (frequencies[voice_place] * CPU_PRESCALER)) >> 1 * duty_place; // Set compare to half the period
+                OCR3A = (int)((((double)F_CPU) / (frequencies[voice_place] * CPU_PRESCALER)) * note_timbre); // Set compare to half the period
+                //OCR3A = (int)(((double)F_CPU) / (frequencies[voice_place] * CPU_PRESCALER)) >> 1 * duty_place; // Set compare to half the period
                 place++;
                 // if (duty_counter > (frequencies[voice_place] / 500)) {
                 //     duty_place = (duty_place % 3) + 1;
@@ -288,7 +291,7 @@ ISR(TIMER3_COMPA_vect) {
         #else
             if (note_frequency > 0) {
                 ICR3 = (int)(((double)F_CPU) / (note_frequency * CPU_PRESCALER)); // Set max to the period
-                OCR3A = (int)(((double)F_CPU) / (note_frequency * CPU_PRESCALER)) >> 1; // Set compare to half the period
+                OCR3A = (int)((((double)F_CPU) / (note_frequency * CPU_PRESCALER)) * note_timbre); // Set compare to half the period
             } else {
                 ICR3 = 0;
                 OCR3A = 0;
@@ -304,7 +307,7 @@ ISR(TIMER3_COMPA_vect) {
             end_of_note = (note_position >= (note_length * 0x7FF));
         if (end_of_note) {
             current_note++;
-            if (current_note >= notes_length) {
+            if (current_note >= notes_count) {
                 if (notes_repeat) {
                     current_note = 0;
                 } else {
@@ -327,10 +330,10 @@ ISR(TIMER3_COMPA_vect) {
                 note_resting = false;
                 #ifdef PWM_AUDIO
                     note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE;
-                    note_length = (*notes_pointer)[current_note][1];
+                    note_length = (*notes_pointer)[current_note][1] * (note_tempo / 100);
                 #else
                     note_frequency = (*notes_pointer)[current_note][0];
-                    note_length = (*notes_pointer)[current_note][1] / 4;
+                    note_length = ((*notes_pointer)[current_note][1] / 4) * (note_tempo / 100);
                 #endif
             }
             note_position = 0;
@@ -344,15 +347,16 @@ ISR(TIMER3_COMPA_vect) {
     }
 }
 
-void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat, float n_rest) {
+void play_notes(float (*np)[][2], uint8_t n_count, bool n_repeat, float n_rest) {
 
 if (audio_config.enable) {
 
     if (note)
         stop_all_notes();
+    notes = true;
 
     notes_pointer = np;
-    notes_length = n_length;
+    notes_count = n_count;
     notes_repeat = n_repeat;
     notes_rest = n_rest;
 
@@ -360,10 +364,10 @@ if (audio_config.enable) {
     current_note = 0;
     #ifdef PWM_AUDIO
         note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE;
-        note_length = (*notes_pointer)[current_note][1];
+        note_length = (*notes_pointer)[current_note][1] * (note_tempo / 100);
     #else
         note_frequency = (*notes_pointer)[current_note][0];
-        note_length = (*notes_pointer)[current_note][1] / 4;
+        note_length = ((*notes_pointer)[current_note][1] / 4) * (note_tempo / 100);
     #endif
     note_position = 0;
 
@@ -375,7 +379,6 @@ if (audio_config.enable) {
         TCCR3A |= _BV(COM3A1);
     #endif
 
-    notes = true;
 }
 
 }
@@ -405,6 +408,7 @@ if (audio_config.enable && voices < 8) {
 
     if (notes)
         stop_all_notes();
+    note = true;
     #ifdef PWM_AUDIO
         freq = freq / SAMPLE_RATE;
     #endif
@@ -436,7 +440,34 @@ if (audio_config.enable && voices < 8) {
         TCCR3A |= _BV(COM3A1);
     #endif
 
-    note = true;
 }
 
-}
\ No newline at end of file
+}
+
+void set_timbre(float timbre)
+{
+        note_timbre = timbre;
+}
+
+void set_tempo(float tempo)
+{
+        note_tempo = tempo;
+}
+
+void decrease_tempo(uint8_t tempo_change)
+{
+        note_tempo += (float) tempo_change;
+}
+
+void increase_tempo(uint8_t tempo_change)
+{
+        if (note_tempo - (float) tempo_change < 10)
+                {
+                        note_tempo = 10;
+                }
+        else
+                {
+                note_tempo -= (float) tempo_change;
+                }
+}
+
diff --git a/quantum/audio.h b/quantum/audio.h
index e1bc23ffe..05d314c94 100644
--- a/quantum/audio.h
+++ b/quantum/audio.h
@@ -3,6 +3,7 @@
 #include <avr/io.h>
 #include <util/delay.h>
 #include "musical_notes.h"
+#include "song_list.h"
 
 #ifndef AUDIO_H
 #define AUDIO_H
@@ -24,8 +25,12 @@ void play_note(double freq, int vol);
 void stop_note(double freq);
 void stop_all_notes(void);
 void init_notes(void);
-void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat, float n_rest);
+void play_notes(float (*np)[][2], uint8_t n_count, bool n_repeat, float n_rest);
 
+void set_timbre(float timbre);
+void set_tempo(float tempo);
+void increase_tempo(uint8_t tempo_change);
+void decrease_tempo(uint8_t tempo_change);
 
 #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), \
diff --git a/quantum/keymap_common.c b/quantum/keymap_common.c
index d38e6fdb2..2001438b9 100644
--- a/quantum/keymap_common.c
+++ b/quantum/keymap_common.c
@@ -26,6 +26,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "backlight.h"
 #include "keymap_midi.h"
 #include "bootloader.h"
+#include "eeconfig.h"
 
 extern keymap_config_t keymap_config;
 
@@ -33,15 +34,13 @@ extern keymap_config_t keymap_config;
 #include <inttypes.h>
 #ifdef AUDIO_ENABLE
     #include "audio.h"
+
     #ifndef TONE_GOODBYE
-    #define TONE_GOODBYE { \
-        {440.0*pow(2.0,(31)/12.0), 8}, \
-        {440.0*pow(2.0,(24)/12.0), 8}, \
-        {440.0*pow(2.0,(19)/12.0), 12}, \
-    } 
-    #endif
-    float tone_goodbye[][2] = TONE_GOODBYE;
-#endif
+        #define TONE_GOODBYE OLKB_GOODBYE
+    #endif /*! TONE_GOODBYE */
+
+    float tone_goodbye[][2] = SONG(TONE_GOODBYE);
+#endif /* AUDIO_ENABLE */
 
 static action_t keycode_to_action(uint16_t keycode);
 
diff --git a/quantum/musical_notes.h b/quantum/musical_notes.h
index 837f6a069..ccdc34f27 100644
--- a/quantum/musical_notes.h
+++ b/quantum/musical_notes.h
@@ -2,22 +2,38 @@
 #define MUSICAL_NOTES_H
 
 // Tempo Placeholder
-#define TEMPO 120
+#define TEMPO_DEFAULT 100
+
+
+#define SONG(notes...) { notes }
 
 
 // Note Types
-#define WHOLE_NOTE(note)     {(NOTE##note), 64}
-#define HALF_NOTE(note)      {(NOTE##note), 32}
-#define QUARTER_NOTE(note)   {(NOTE##note), 16}
-#define EIGHTH_NOTE(note)    {(NOTE##note), 8}
-#define SIXTEENTH_NOTE(note) {(NOTE##note), 4}
+#define MUSICAL_NOTE(note, duration)   {(NOTE##note), duration}
+#define WHOLE_NOTE(note)               MUSICAL_NOTE(note, 64)
+#define HALF_NOTE(note)                MUSICAL_NOTE(note, 32)
+#define QUARTER_NOTE(note)             MUSICAL_NOTE(note, 16)
+#define EIGHTH_NOTE(note)              MUSICAL_NOTE(note,  8)
+#define SIXTEENTH_NOTE(note)           MUSICAL_NOTE(note,  4)
+
+#define WHOLE_DOT_NOTE(note)           MUSICAL_NOTE(note, 64+32)
+#define HALF_DOT_NOTE(note)            MUSICAL_NOTE(note, 32+16)
+#define QUARTER_DOT_NOTE(note)         MUSICAL_NOTE(note, 16+8)
+#define EIGHTH_DOT_NOTE(note)          MUSICAL_NOTE(note,  8+4)
+#define SIXTEENTH_DOT_NOTE(note)       MUSICAL_NOTE(note,  4+2)
 
-// Note Types Short
-#define W_NOTE(n) WHOLE_NOTE(n)
-#define H_NOTE(n) HALF_NOTE(n)
-#define Q_NOTE(n) QUARTER_NOTE(n)
-#define E_NOTE(n) EIGTH_NOTE(n)
-#define S_NOTE(n) SIXTEENTH_NOTE(n)
+// Note Type Shortcuts
+#define M__NOTE(note, duration)        MUSICAL_NOTE(note, duration)
+#define W__NOTE(n)                     WHOLE_NOTE(n)
+#define H__NOTE(n)                     HALF_NOTE(n)
+#define Q__NOTE(n)                     QUARTER_NOTE(n)
+#define E__NOTE(n)                     EIGHTH_NOTE(n)
+#define S__NOTE(n)                     SIXTEENTH_NOTE(n)
+#define WD_NOTE(n)                     WHOLE_DOT_NOTE(n)
+#define HD_NOTE(n)                     HALF_DOT_NOTE(n)
+#define QD_NOTE(n)                     QUARTER_DOT_NOTE(n)
+#define ED_NOTE(n)                     EIGHTH_DOT_NOTE(n)
+#define SD_NOTE(n)                     SIXTEENTH_DOT_NOTE(n)
 
 // Note Styles
 // Staccato makes sure there is a rest between each note. Think: TA TA TA
@@ -25,6 +41,15 @@
 #define STACCATO 0.01
 #define LEGATO   0
 
+// Note Timbre
+// Changes how the notes sound
+#define TIMBRE_12       0.125
+#define TIMBRE_25       0.250
+#define TIMBRE_50       0.500
+#define TIMBRE_75       0.750
+#define TIMBRE_DEFAULT  TIMBRE_50
+
+
 // Notes - # = Octave
 #define NOTE_REST         0.00
 #define NOTE_C0          16.35
diff --git a/quantum/song_list.h b/quantum/song_list.h
new file mode 100644
index 000000000..b626c3fa6
--- /dev/null
+++ b/quantum/song_list.h
@@ -0,0 +1,23 @@
+#include "musical_notes.h"
+
+#ifndef SONG_LIST_H
+#define SONG_LIST_H
+
+#define ODE_TO_JOY                                          \
+        Q__NOTE(_E4), Q__NOTE(_E4), Q__NOTE(_F4), Q__NOTE(_G4), \
+        Q__NOTE(_G4), Q__NOTE(_F4), Q__NOTE(_E4), Q__NOTE(_D4), \
+        Q__NOTE(_C4), Q__NOTE(_C4), Q__NOTE(_D4), Q__NOTE(_E4), \
+        QD_NOTE(_E4), E__NOTE(_D4), H__NOTE(_D4),
+
+#define ROCK_A_BYE_BABY                            \
+        QD_NOTE(_B4), E__NOTE(_D4), Q__NOTE(_B5),      \
+        H__NOTE(_A5), Q__NOTE(_G5),                    \
+        QD_NOTE(_B4), E__NOTE(_D5), Q__NOTE(_G5),      \
+        H__NOTE(_FS5),
+
+#define OLKB_GOODBYE \
+        E__NOTE(_E7),    \
+        E__NOTE(_A6),    \
+        ED_NOTE(_E6),
+
+#endif