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.
KeyStep 37 mk2 is more than keys. It's a sequencer, arpeggiator, and musical nerve-centre that bridges hardware and software so you can compose, jam, and perform anywhere your ideas take you. Play, arpeggiate, and sequence ideas the moment they strike. KeyStep 37's OLED display, 4 mode-aware encoders, and full RGB feedback also make every edit fast and intuitive. Capture a riff, turn it into a sequence, then transform it with mutation tools and real-time performance control. Command modular, vintage, and modern gear alongside your DAW with controllable CV/Gate, MIDI DIN, Sync I/O, and USB-C.
Control & sequence anything: 37 expressive Slimkey keys with velocity & aftertouch; 16-mode arpeggiator from simple cycles to creative melodic textures; pitch & mod touch strips with live Gate/Spice/Dice sliders; 4 mode-aware encoders for instant Seq/Arp/Chord/Mutate editing; Mutate, Spice & Dice for instant musical variations; four controllable CV/Gate outputs; polyphonic step sequencer up to 64 steps of 8-note polyphony; Chord & Scale modes; full-size MIDI DIN + Sync I/O.
More keys, deeper control: five extra keys give more range for two-hand parts and wider chord shapes, with LEDs above the keys for instant visual feedback. A dedicated Control button and 4 encoders put core edits under your fingers while playing — switch between Seq, Arp, Chord, and Mutate and the encoders remap automatically. Tap MIDI CC for 16 assignable controls across 4 banks, plus controllable CV/MOD outputs to adapt modulation type and range to your modular gear.
3 modes working as one: Sequencer mode creates and plays back polyphonic patterns with chaining, overdub, undo, mutate, and live automation; Arpeggiator mode offers 16 arp types including Poly, Walk, Pattern, and Random; Controller mode handles MIDI, USB, and CV as a central controller to sequence gear, input chords, or modulate CV synths.
Every port, every possibility: full-size MIDI DIN I/O, USB-C, and assignable CV/Gate for modular; four CV/Gate outs mappable to velocity, aftertouch, mod-wheel, and more; 3.5 mm Sync In/Out for vintage gear; TRS sustain/expression input; MIDI In to CV for playing modular from external keys.
Main Features: 37-note Slimkey keyboard with velocity & aftertouch; 2 capacitive touch strips for pitch-bend & modulation; polyphonic step sequencer up to 64 steps, 8-voice polyphony; 16-mode arpeggiator with generative pattern styles; Mutate, Spice & Dice tools for live variation; Chord & Scale modes for instant harmony; OLED display with clickable encoder & RGB LED feedback; 4 encoders + Control button for mode-aware editing; MIDI CC button with 4 banks (16 assignable MIDI CCs); 4 controllable CV/Gate outputs (Pitch, Gate, Mod 1, Mod 2); full-size MIDI DIN In/Out + 3.5 mm Sync In/Out; MIDI Thru support; sustain/expression pedal input (TRS); USB-C MIDI (class-compliant) and bus power; power switch & Kensington lock slot; low-power operation, iPad-compatible; software bundle: Analog Lab Intro (500+ sounds) + Ableton Live Lite.
What's in the Box: KeyStep 37 mk2 unit; USB-A to USB-C cable.
Size & weight: 58 x 547 x 148 mm (2.28 x 21.54 x 5.83 in); 1.09 kg (2.40 lb).
