Description
The Arturia KeyStep 37 mk2 is a compact 37-key Slimkey MIDI controller and hardware sequencer built for expressive performance and hybrid studio setups. It features velocity-sensitive keys with aftertouch, an OLED display, RGB feedback, and touch strips for pitch and modulation, giving fast, hands-on control. A powerful 64-step polyphonic sequencer and 16-mode arpeggiator are enhanced with creative tools like Mutate, Spice, and Dice for real-time generative variation. With USB-C, full MIDI DIN, sync I/O, sustain/expression inputs, and four configurable CV/Gate outputs, it connects seamlessly to DAWs, hardware synths, and modular gear. It also includes bundled software like Ableton Live Lite and Analog Lab Intro, making it a complete creative hub for music production and performance.

More Keys Deeper Control
Built for deeper hands-on control and expanded creative flow, it adds a wider playing range with five extra LED-guided keys, four adaptive encoders that shift seamlessly between Seq/Arp/Chord/Mutate modes, and extended MIDI/CV modulation for fluid, real-time control across both hardware and software setups.

Every Port Every Possibility
KeyStep 37 mk2 is a universal creative interface that connects modular systems, classic hardware, and modern DAWs, offering full MIDI DIN, USB-C, and CV/Gate integration alongside sync, sustain, and expression I/O, with four assignable CV outputs for expressive control and flexible routing across any studio or live setup.

3 Modes Working As 1
Brings together Sequencer, Arpeggiator, and Controller modes to evolve ideas from riffs into full performances, offering polyphonic sequencing with live editing, 16-mode expressive arpeggiation, and full MIDI/USB/CV control for driving hardware, software, and modular gear from one compact keyboard.

Generative Sequence Engine
Built-in generative tools like Mutate, Spice, and Dice let you instantly transform simple patterns into evolving musical ideas, introducing controlled randomness, rhythmic variation, and real-time sequence shaping so your performances stay dynamic and constantly evolving without stopping the flow.
- 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 sequence variation
- Chord & Scale modes for instant harmonic performance
- OLED display with clickable encoder + RGB LED feedback
- 4 encoders + Control button for mode-aware editing (Seq, Arp, Chord, Mutate)
- MIDI CC control with 4 banks (16 assignable CCs across modes)
- 4 CV/Gate outputs (Pitch, Gate, Mod 1, Mod 2) assignable to velocity, aftertouch, mod wheel
- 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) + bus power
- Power switch & Kensington lock slot
- Low-power operation with iPad compatibility (camera connection kit required)
- Includes software: Analog Lab Intro (500+ sounds)
- Includes Ableton Live Lite
- Item Type: USB/MIDI Controller Keyboard
- Keyboard: 37 Slim Keys with Synth Action
- Expression Controls: 1x Touch-Capacitive Pitch Bend 1x Touch-Capacitive Modulation
- Display: OLED
- Sequencer: Number of Steps: 64x Step
- Pedal Support: 1x 1/4″ Expression/Sustain
- MIDI I/O: 1x DIN 5-Pin Input 1x DIN 5-Pin Output
- USB I/O: 1x USB-C (Bus Power, Host Connection, MIDI)
- Power Requirements: USB Bus Power
- Color: White
- Included Accessories: USB Cable
- Dimensions: 21.5 x 5.8 x 1.7″ / 547 x 148 x 43 mm
- Weight: 2.4 lb / 1.1 kg












