#define MIDI_CTL_ALL_NOTES_OFF 0x7B /**< All Notes Off */
#define MIDI_CTL_OMNI_OFF 0x7C /**< Omni Off */
#define MIDI_CTL_OMNI_ON 0x7D /**< Omni On */
-#define MIDI_CTL_MONO1 0x7E /**< Mono1 */
-#define MIDI_CTL_MONO2 0x7F /**< Mono2 */
+#define MIDI_CTL_MONO 0x7E /**< Monophonic mode */
+#define MIDI_CTL_POLY 0x7F /**< Polyphonic mode */
// Commands
#define MIDI_CMD_NOTE_OFF 0x80 /**< Note Off */