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+# Audio
+
+Your keyboard can make sounds! If you've got a Planck, Preonic, or basically any AVR keyboard that allows access to the C6 or B5 port (`#define C6_AUDIO` and/or `#define B5_AUDIO`), you can hook up a simple speaker and make it beep. You can use those beeps to indicate layer transitions, modifiers, special keys, or just to play some funky 8bit tunes.
+
+If you add `AUDIO_ENABLE = yes` to your `rules.mk`, there's a couple different sounds that will automatically be enabled without any other configuration:
+
+```
+STARTUP_SONG // plays when the keyboard starts up (audio.c)
+GOODBYE_SONG // plays when you press the RESET key (quantum.c)
+AG_NORM_SONG // plays when you press AG_NORM (quantum.c)
+AG_SWAP_SONG // plays when you press AG_SWAP (quantum.c)
+MUSIC_ON_SONG // plays when music mode is activated (process_music.c)
+MUSIC_OFF_SONG // plays when music mode is deactivated (process_music.c)
+CHROMATIC_SONG // plays when the chromatic music mode is selected (process_music.c)
+GUITAR_SONG // plays when the guitar music mode is selected (process_music.c)
+VIOLIN_SONG // plays when the violin music mode is selected (process_music.c)
+MAJOR_SONG // plays when the major music mode is selected (process_music.c)
+```
+
+You can override the default songs by doing something like this in your `config.h`:
+
+```c
+#ifdef AUDIO_ENABLE
+  #define STARTUP_SONG SONG(STARTUP_SOUND)
+#endif
+```
+
+A full list of sounds can be found in [quantum/audio/song_list.h](https://github.com/qmk/qmk_firmware/blob/master/quantum/audio/song_list.h) - feel free to add your own to this list! All available notes can be seen in [quantum/audio/musical_notes.h](https://github.com/qmk/qmk_firmware/blob/master/quantum/audio/musical_notes.h).
+
+To play a custom sound at a particular time, you can define a song like this (near the top of the file):
+
+```c
+float my_song[][2] = SONG(QWERTY_SOUND);
+```
+
+And then play your song like this:
+
+```c
+PLAY_SONG(my_song);
+```
+
+Alternatively, you can play it in a loop like this:
+
+```c
+PLAY_LOOP(my_song);
+```
+
+It's advised that you wrap all audio features in `#ifdef AUDIO_ENABLE` / `#endif` to avoid causing problems when audio isn't built into the keyboard.
+
+## Music mode
+
+The music mode maps your columns to a chromatic scale, and your rows to octaves. This works best with ortholinear keyboards, but can be made to work with others. All keycodes less than `0xFF` get blocked, so you won't type while playing notes - if you have special keys/mods, those will still work. A work-around for this is to jump to a different layer with KC_NOs before (or after) enabling music mode.  
+
+Recording is experimental due to some memory issues - if you experience some weird behavior, unplugging/replugging your keyboard will fix things.
+
+Keycodes available:
+
+* `MU_ON` - Turn music mode on
+* `MU_OFF` - Turn music mode off
+* `MU_TOG` - Toggle music mode
+* `MU_MOD` - Cycle through the music modes:
+  * `CHROMATIC_MODE` - Chromatic scale, row changes the octave
+  * `GUITAR_MODE` - Chromatic scale, but the row changes the string (+5 st)
+  * `VIOLIN_MODE` - Chromatic scale, but the row changes the string (+7 st)
+  * `MAJOR_MODE` - Major scale
+
+In music mode, the following keycodes work differently, and don't pass through:
+
+* `LCTL` - start a recording
+* `LALT` - stop recording/stop playing
+* `LGUI` - play recording
+* `KC_UP` - speed-up playback
+* `KC_DOWN` - slow-down playback
+
+By default, `MUSIC_MASK` is set to `keycode < 0xFF` which means keycodes less than `0xFF` are turned into notes, and don't output anything. You can change this by defining this in your `config.h` like this:
+
+    #define MUSIC_MASK keycode != KC_NO
+
+Which will capture all keycodes - be careful, this will get you stuck in music mode until you restart your keyboard!
+
+The pitch standard (`PITCH_STANDARD_A`) is 440.0f by default - to change this, add something like this to your `config.h`:
+
+    #define PITCH_STANDARD_A 432.0f
+
+## MIDI functionalty
+
+This is still a WIP, but check out `quantum/keymap_midi.c` to see what's happening. Enable from the Makefile.
+
+<!-- FIXME: this formatting needs work
+
+## Audio
+
+```c
+#ifdef AUDIO_ENABLE
+    AU_ON,
+    AU_OFF,
+    AU_TOG,
+
+    #ifdef FAUXCLICKY_ENABLE
+        FC_ON,
+        FC_OFF,
+        FC_TOG,
+    #endif
+
+    // Music mode on/off/toggle
+    MU_ON,
+    MU_OFF,
+    MU_TOG,
+
+    // Music voice iterate
+    MUV_IN,
+    MUV_DE,
+#endif
+```
+
+### Midi
+
+#if !MIDI_ENABLE_STRICT || (defined(MIDI_ENABLE) && defined(MIDI_BASIC))
+    MI_ON,  // send midi notes when music mode is enabled
+    MI_OFF, // don't send midi notes when music mode is enabled
+#endif
+
+MIDI_TONE_MIN,
+MIDI_TONE_MAX
+
+MI_C = MIDI_TONE_MIN,
+MI_Cs,
+MI_Db = MI_Cs,
+MI_D,
+MI_Ds,
+MI_Eb = MI_Ds,
+MI_E,
+MI_F,
+MI_Fs,
+MI_Gb = MI_Fs,
+MI_G,
+MI_Gs,
+MI_Ab = MI_Gs,
+MI_A,
+MI_As,
+MI_Bb = MI_As,
+MI_B,
+
+MIDI_TONE_KEYCODE_OCTAVES > 1
+
+where x = 1-5:
+MI_C_x,
+MI_Cs_x,
+MI_Db_x = MI_Cs_x,
+MI_D_x,
+MI_Ds_x,
+MI_Eb_x = MI_Ds_x,
+MI_E_x,
+MI_F_x,
+MI_Fs_x,
+MI_Gb_x = MI_Fs_x,
+MI_G_x,
+MI_Gs_x,
+MI_Ab_x = MI_Gs_x,
+MI_A_x,
+MI_As_x,
+MI_Bb_x = MI_As_x,
+MI_B_x,
+
+MI_OCT_Nx 1-2
+MI_OCT_x 0-7
+MIDI_OCTAVE_MIN = MI_OCT_N2,
+MIDI_OCTAVE_MAX = MI_OCT_7,
+MI_OCTD, // octave down
+MI_OCTU, // octave up
+
+MI_TRNS_Nx 1-6
+MI_TRNS_x 0-6
+MIDI_TRANSPOSE_MIN = MI_TRNS_N6,
+MIDI_TRANSPOSE_MAX = MI_TRNS_6,
+MI_TRNSD, // transpose down
+MI_TRNSU, // transpose up
+
+MI_VEL_x 1-10
+MIDI_VELOCITY_MIN = MI_VEL_1,
+MIDI_VELOCITY_MAX = MI_VEL_9,
+MI_VELD, // velocity down
+MI_VELU, // velocity up
+
+MI_CHx 1-16
+MIDI_CHANNEL_MIN = MI_CH1
+MIDI_CHANNEL_MAX = MI_CH16,
+MI_CHD, // previous channel
+MI_CHU, // next channel
+
+MI_ALLOFF, // all notes off
+
+MI_SUS, // sustain
+MI_PORT, // portamento
+MI_SOST, // sostenuto
+MI_SOFT, // soft pedal
+MI_LEG,  // legato
+
+MI_MOD, // modulation
+MI_MODSD, // decrease modulation speed
+MI_MODSU, // increase modulation speed
+#endif // MIDI_ADVANCED
+
+-->