KeyStep 37 goes beyond an easy-to-use 64-step sequencer, arpeggiator, and MIDI keyboard. It's responsive, dynamic, expanded in every direction to encourage musical exploration - the controller that's built to inspire. The KeyStep 37 combines a flexible 37-note keyboard with intuitive sequencing, instant chord generation, and creative real-time MIDI controls that let you discover and interact with music like never before.

37-note Slimkey keyboard

With velocity, aftertouch and real-time RGB LED indicators for a comfortable, responsive performance.

Creative Sequencer and Arpeggiator

Sequence up to 64-steps with 8-note polyphony and 8 pattern slots, or explore 8 modes of arpeggiation.

Supercharged Chord Mode

Generate instant chord sequences that respond to your velocity, with 12 chord types and an articulate instrument-like strum control.

Versatile Connectivity

Connect to your computer, your desktop MIDI synths, or your CV and modular gear for simultaneous control over hardware and software.

Scale Mode

Quantize the keyboard and never play a wrong note. Choose from 5 scales, including a user-defined scale, to set your musical terms.

Assignable MIDI CC Controls

Interact with your hardware and software with 16 assignable MIDI CC parameters across 4 switchable banks.

Music Made Interactive

KeyStep 37's unique and enhanced Chord mode takes your single-note melodies and unfinished ideas and transforms them into musical stepping stones. Choose from multiple voicings, instrument-like strum effects, and velocity settings and make your music sing.

Ableton Live Lite Included

Included is a free copy of Ableton Live Lite, an accessible music-making suite for your Mac or PC. Register KeyStep 37 for your free download and get creative right out the box - let the music flow freely.