qmk_firmware/keyboards/keebio/levinson/keymaps/xtonhasvim/config.h

#pragma once

#define USE_SERIAL

// #define MUSIC_MASK (keycode != KC_NO)

/*
 * MIDI options
 */

/* enable basic MIDI features:
   - MIDI notes can be sent when in Music mode is on
*/

// #define MIDI_BASIC

/* enable advanced MIDI features:
   - MIDI notes can be added to the keymap
   - Octave shift and transpose
   - Virtual sustain, portamento, and modulation wheel
   - etc.
*/
//#define MIDI_ADVANCED

/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
//#define MIDI_TONE_KEYCODE_OCTAVES 2

// help for fast typist+dual function keys?
#define PERMISSIVE_HOLD

// where is the cord plugged in?
#define MASTER_LEFT