Arturia KeyStep 37 mk2 Controller & Sequencer

Take full control of your music with the Arturia KeyStep 37 mk2 Controller & Sequencer. This compact unit pairs a 37-note Slimkey keyboard with built-in step sequencing and wide-ranging hookup options. As a result, you can write, jam, and perform no matter where ideas strike.

The KeyStep 37 mk2 is more than just a keyboard — in fact, it works as the brain of your whole setup. For instance, the 16-mode arpeggiator lets you build rolling patterns on the fly. On top of that, the polyphonic step sequencer handles up to 64 steps with 8-voice polyphony. Meanwhile, chord and scale modes lock your notes to the right key so you always stay in tune.

Whether you are driving synths, patching modular gear, or laying down ideas in your DAW, this controller fits right in with how you like to work.

Hands-On Controls for a Faster Workflow

Thanks to the bright OLED display and clickable encoder, you can see and adjust your settings at a glance. In addition, four mode-aware encoders let you shape the sequencer, arpeggiator, chord, and mutate functions without diving into menus. There is also a MIDI CC button with 4 banks, so you can map and tweak up to 16 MIDI CCs across all modes. Furthermore, two touch strips give you smooth pitch bend and modulation control, which means your playing feels alive and full of feeling.

Hook Up to Any Gear with Ease

One of the best things about the KeyStep 37 mk2 is how easily it links to just about anything. For example, you get full-size MIDI DIN In/Out along with USB-C MIDI and bus power. Besides that, 3.5 mm Sync In/Out ports keep your timing tight with other gear. On top of all this, four CV/Gate outputs let you patch straight into modular rigs. Also, a sustain and expression pedal input adds even more options for both live shows and studio sessions.

Key Features

• 37-note Slimkey keyboard with velocity and aftertouch
• 2 touch strips for pitch-bend and modulation
• Polyphonic step sequencer: up to 64 steps, 8-voice polyphony
• 16-mode arpeggiator with pattern styles that grow and change
• Mutate, Spice & Dice tools for live tweaks
• Chord and Scale modes for instant harmony
• OLED display with clickable encoder and RGB LED feedback
• 4 encoders plus a Control button for mode-aware editing of Sequencer, Arpeggiator, Chord, and Mutate
• MIDI CC button with 4 banks for 16 MIDI CCs you can assign yourself
• 4 CV/Gate outputs that can be set to velocity, aftertouch, mod wheel, and more
• Full-size MIDI DIN In/Out and 3.5 mm Sync In/Out
• Sustain / expression pedal input (TRS) and USB-C MIDI with bus power