KeyStep 37 mk2 is the ultimate compact controller & sequencer for hybrid setups. With a 37-note Slimkey keyboard, hands-on encoders, generative sequencing tools, and deep connectivity via CV/Gate, MIDI DIN, and USB-C — spark ideas in your DAW, pilot any synth, or patch modular without breaking your flow.
KEYBOARD
Keyboard: 37-note Slimkey keyboard with velocity & aftertouch
Pitch-Bend & Modulation: 2 capacitive touch strips
SEQUENCER & ARPEGGIATOR
Polyphonic Step Sequencer: Up to 64 steps, 8-voice polyphony
Arpeggiator: 16-mode with generative pattern styles
Variation Tools: Mutate, Spice & Dice
Chord & Scale Modes: Yes
DISPLAY & CONTROLS
Display: OLED with clickable encoder & RGB LED feedback
Encoders: 4 + Control button for mode-aware editing of Seq, Arp, Chord, and Mutate
MIDI CC: Button with 4 banks; 16 assignable MIDI CCs available across all modes
CV/GATE
Outputs: 4 controllable CV/Gate outputs (Pitch, Gate, Mod 1, Mod 2)
Assignments: Velocity, aftertouch, mod wheel & more
CONNECTIVITY
MIDI: Full-size MIDI DIN In/Out
MIDI Thru: Supported
Sync: 3.5 mm Sync In/Out
Pedal Input: Sustain / expression (TRS)
USB: USB-C MIDI (class-compliant) and bus power
Power Switch: Yes
Kensington Lock Slot: Yes
iPad Compatibility: Low-power operation; iPad® compatible (camera connection kit required)
SOFTWARE BUNDLE
Analog Lab Intro (500+ sounds)
Ableton Live Lite
WHAT'S IN THE BOX
BOX CONTENT
KeyStep 37 mk2 unit
USB-A to USB-C cable
SIZE & WEIGHT
Size (mm): 58 x 547 x 148 mm
Size (in): 2.28 x 21.54 x 5.83 in
Weight (kg): 1.09 kg
Weight (lb): 2.40 lb