Transforms Your Ideas Into Polished Sequences
Building on the success of its predecessor and taking cues from the KeyStep mk2, the Arturia KeyStep 37 mk2 stands as a high-value addition to your creative workflow. This compact, yet eminently powerful, 37-key MIDI controller and sequencer integrates seamlessly with both hardware- and software-centric setups, equipping you with a velocity‑sensitive Slimkey keyboard with aftertouch, capacitive-touch pitch and mod strips, and built‑in Chord and Scale play modes. The KeyStep 37 mk2 is a powerfully inspiring idea generator, thanks to its polyphonic step sequencer, 16-mode arpeggiator, and pattern chaining. That said, most of us around Sweetwater find the 1-touch Mutate tools to be among our favorites, generating evolving melodic and rhythmic variations, all supported by four assignable macro encoders for hands-on control. You also get extensive connectivity, including USB‑C MIDI, MIDI DIN, Sync I/O, pedal input, and four configurable CV outputs, enabling you to deploy it in software, hardware, and hybrid setups with equal aplomb. Additionally, the KeyStep 37 mk2 features an easy-to-read OLED screen and an intuitive push encoder, ensuring lightning-fast navigation with minimal unwanted menu diving. Producers searching for a streamlined MIDI controller with tons of onboard music creation tools will find endless uses for the KeyStep 37 mk2.
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What’s new with mk2?
With Arturia’s mk2 improvements onboard, the KeyStep 37 is more powerful than ever before. For starters, the controller’s vaunted arpeggiator engine comes equipped with 16 adjustable operation modes, from simple cycled melodies to entirely experimental rhythmic forays. Likewise, the sequencer’s newly added 1-touch Mutation tools, including splice/dice and tie/rest steps, pave the way toward entirely generative melodic possibilities, keeping your compositions creatively unpredictable while maintaining a professional sonic edge. Together, these enhancements make the KeyStep 37 mk2 a powerful engine for controlled experimentation and modern composition.

Arturia KeyStep 37 mk2 Features:
- 37-key compact controller and sequencer with a bounty of 2nd-gen improvements
- Velocity-sensitive Slimkey keyboard with aftertouch ensures maximum expressive control in any performance environment
- Capacitive-touch pitch and mod controls for smooth notational control
- Onboard Chord and Scale play modes for quick compositional sketches and playability
- Built-in polyphonic step sequencer and 16-mode arpeggiator engines promote boundless rhythmic and melodic playing potential
- Pattern chaining allows you to link multiple sequences together for more complex musical arrangements
- 1-touch Mutate tools generate evolving melodic and rhythmic variations, all supported by 4 assignable macro encoders
- Seamless rig integration via USB‑C MIDI, MIDI DIN, Sync I/O, pedal input, and 4 configurable CV outputs
- Easy-to-read OLED screen and push encoder provide straightforward management of your device’s operation
- Slim, travel-friendly design makes for effortless travel and transport between gigs