MIDI Note Reference Table

Convert MIDI note numbers, note names, and Hz, plus the CC, transport, and GM drum reference Ableton and your hardware speak.

Highlighted row = currently selected note.

#	Note	Hz	Context

The control-change numbers Ableton and most DAWs show when you MIDI-map a knob or pedal.

CC	Control	What it does
1	Mod Wheel	Vibrato / modulation depth. The most-mapped controller.
2	Breath	Breath controllers and many wind instruments.
4	Foot Controller	Expression via a foot pedal.
5	Portamento Time	Glide speed between notes.
7	Channel Volume	Per-channel volume. The main level CC.
10	Pan	Left/right position (0 = left, 64 = centre, 127 = right).
11	Expression	Volume articulation under the main Volume. Swells, fades.
64	Sustain Pedal	0–63 = off, 64–127 = on. The damper pedal.
65	Portamento	Glide on/off switch.
67	Soft Pedal	Una corda / softens the sound.
71	Resonance	Filter resonance / Q. Common synth macro.
74	Cutoff / Brightness	Filter cutoff. The other common synth macro.
91	Reverb Send	Effect 1 depth (reverb on most gear).
93	Chorus Send	Effect 3 depth (chorus on most gear).
120	All Sound Off	Immediately silences all notes on the channel.
121	Reset Controllers	Returns all CCs to default values.
123	All Notes Off	Releases all held notes. The classic "panic" message.

System real-time and transport bytes - how sequencers, drum machines, and DAWs sync. Hex byte, then decimal.

Byte	Message	What it does
0xF8	Timing Clock (248)	24 pulses per quarter note. The MIDI tempo clock. (GP Metronome sends this.)
0xFA	Start (250)	Start playback from the top.
0xFB	Continue (251)	Resume from where you stopped.
0xFC	Stop (252)	Stop playback.
0xF2	Song Position (242)	Pointer to a beat position, so devices jump in sync.
0xFE	Active Sensing (254)	Keep-alive heartbeat some gear sends ~every 300ms.
0xFF	System Reset (255)	Resets a device to power-on state.

General MIDI percussion map - channel 10. These are the note numbers GP's drum tools send.