GR!MM

• Four tracks share six voices, each with its own sound, sequence and send into the shared effects.
• Seven sources cover analog-style, six-operator FM, sample loops, formant voice, tonewheel organ, physical models and phase distortion.
• Forty factory sounds in eight categories load from the PRESETS knob, with sixty-four slots for your own.
• Each track runs a 64-step pattern with chance, ratchets, note lengths, step locks and tools like random and mutate.
• Hold SEL for one-key chords, set a scale so every key stays in tune, and latch notes into drones.
• Tape, grain, delay and reverb colour the whole mix, with reverb reaching about thirty-two seconds or infinite.
• Saving happens on its own once the sequencer stops and the sound dies away, so the FM-1 returns as you left it.
• Connect over USB for MIDI in and out, sequencer and arp output, MIDI learn and audio into your computer.

Its modes

HOME

Watch the eye and candles while setting the selected track's volume, cutoff, resonance and effect amount.

EDIT

Choose the track's sound source and shape its four knobs, including the six-operator FM editor.

SEL

Set the shared scale and root, and pick a chord type and voicing for one-key chords.

ARP

Set the arpeggiator's mode, rate, octave range and gate, and switch it on for the track.

SEQ

Edit the track's 64-step pattern, step by step, and set length, division, swing and play direction.

SAVE

Store and recall slots A to D and keep your own sounds in sixty-four slots.

SONG

Chain up to sixteen sections of slots with repeats, played once or looping.

FX

Dial in the shared tape, granular, delay and reverb effects.

SYSTEM

Set colour, tuning, screen blanking, MIDI routing, MIDI learn and sample restore.