Arturia KeyStep 37 – 37-Key MIDI Controller & Polyphonic Sequencer with RGB Keys, USB, CV, MIDI, and Chord Mode

More keys, more control, more creativity.

The Arturia KeyStep 37 is a 37-key MIDI controller, polyphonic sequencer, and arpeggiator that goes beyond standard MIDI keyboards. With velocity-sensitive keys, aftertouch, and RGB LED feedback, it offers a hands-on, expressive playing experience.

Designed for producers, modular synth users, and performers, the KeyStep 37 bridges hardware and software with MIDI, USB, CV/Gate, and DIN Sync connectivity. It features an expanded 4-track polyphonic sequencer, chord mode, scale quantization, and real-time controls for instant creativity.

Whether controlling your DAW, analog synths, or modular setup, the KeyStep 37 delivers powerful sequencing, inspiring workflows, and unmatched portability.

Key Features:

• 37 slim keys with velocity and aftertouch

• RGB LEDs for scale, chord, and step feedback

• 4-track polyphonic step sequencer with 64 steps per sequence

• Real-time recording, overdub, and step editing

• Chord mode and scale quantization for instant musicality

• MIDI DIN, USB, CV/Gate, and sync I/O

• USB powered with optional DC power for standalone use

• Transport controls for DAW and hardware gear

The Arturia KeyStep 37 is the ultimate portable sequencer and MIDI keyboard for producers, performers, and modular synth enthusiasts.