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Tonitor on the FM-1's screen

The Firmware Hub · Cheat sheet

Tonitor at a glance

For Tonitor 2026.10.17 · checked against its source

Not a groovebox: six free-running tracks of algorithm-drawn sound objects for ambient and electroacoustic music, six engines, free loopers, no tempo. Pick a track, tap HOME for a new sound, play the white keys.

Play the scale (root on key 1)AMBIENT / EXPERIMENTAL pathChords (hold: on / off)Loops REVERSE / PENDULUM / RANDOMLoops HALF / DOUBLE speedENVELOPE pageEDIT macros (SHIFT: BALLSY)SHIFT

Getting around

tap FX
Track 1; SEL, ENV, LFO, EDIT, GLO are tracks 2-6.
turn PRESETS
Track's engine: FM, ANIMA, CALIGULA, RUSSOLO, DRUID, BAYAREA.
turn SELECT
Track level, OFF to +4.5 dB.
turn ALGORITHM
Track pan.
tap OCT-
Track octave down (OCT+ up), -3 to +3.
tap ARP
SCALE page: SELECT root, ALGORITHM scale; ARP again: back.
hold FX
0.8 s: copy track 1; hold another track's button: paste.

Playing

tap HOME
A new generated sound for the chosen track.
hold black key 11+tap HOME
SHIFT: a new sound of the same family.
white key 1-16
Play the chosen track in the scale, root on key 1.
hold white key 1-16+tap black key 11
SHIFT latches the held notes as a drone.
hold black key 11+white key 1-16
On a lit (latched) key: let it go.
tap black key 1
AMBIENT path for new sounds (key 2: EXPERIMENTAL); again: OPEN.
hold black key 3
0.6 s: chord mode on / off; tap: next chord form.

Sound

turn KNOB 1
DJ filter: left low-pass, right high-pass, middle off.
turn KNOB 2
Granulator: left dark, right scatter, middle off.
turn KNOB 3
Crush: left fewer bits, right lower sample rate.
hold black key 11+turn KNOB 3
SHIFT: distortion, 0-100.
tap black key 10+turn KNOB 1
EDIT: KNOB 1-4 become the sound's four macros.
tap black key 9+turn KNOB 1
ENVELOPE page: KNOB 1-4 attack, decay, sustain, release.
hold black key 11+tap black key 9
Back to the sound's own envelope (AS DRAWN).

Sequencer / patterns

tap REC
Arm a free loop; first note starts, REC ends; again: overdub (10).
hold REC
1 s: empty all the chosen track's loops.
tap PLAY
Stop / restart the chosen track's loops.
hold PLAY+white key 1-10
Take loop 1-10 out, or bring it back in.
hold black key 11+tap PLAY
Every track's loops off, or all on together.
hold black key 11+tap REC
VARY: loops vary notes, levels and pace; again: off.
tap black key 4
Loops REVERSE (5 PENDULUM, 6 RANDOM); again: forwards.
tap black key 7
Loops half speed (8: double); again: normal.
hold black key 11+tap OCT+
All loops one scale step up (OCT- down).
hold black key 11+tap black key 10
BALLSY bouncing-ball sequencer on / off; KNOB 1-4 set it.

Effects

turn KNOB 4
Track's reverb send (starts at 40).
hold black key 11+turn KNOB 4
SHIFT: track's delay send.
tap SEQ
REVERB page: KNOB 1-4 SIZE, DECAY, DAMP, MIX.
hold black key 11+tap SEQ
DELAY page: KNOB 1-4 TIME, FEEDBACK, DAMP, MIX.

Saving & loading

tap SAVE
SESSIONS: PRESETS picks slot 1-64, SAVE loads (empty: new session).
hold SAVE
0.8 s: save the session; first time confirm YES with SAVE.
tap SAVE+turn PRESETS+hold SAVE
Save into the slot shown; over a session turn to YES.
hold black key 11+tap SAVE
Engine's 64 presets: SAVE loads, hold SAVE stores.

Good to know

  • No tempo, no grid: every loop has its own length, so overdubs drift in and out of phase.
  • The black keys play no notes; the rightmost one is SHIFT for every combination on this sheet.
  • A held or latched note keeps sounding while you choose and play another track.
  • Twelve voices are shared by all tracks; CALIGULA and RUSSOLO are one organism per track, silent until a key is down.
  • Saving a session overwrites projects, presets or samples another firmware left in the FM-1's user flash.
  • Something wrong after an update? Hold OCT- while powering on: RESCUE screen for reinstalling.

A community cheat sheet by the hub, not by the firmware's makers: when in doubt, their manual is right.