Arturia Keystep 37 MK2

Arturia KeyStep 37 MK2 is a 37-key Slimkey MIDI controller and polyphonic sequencer with aftertouch, 4 dedicated encoders, 39 LEDs that indicate the notes played, and a 16-mode generative arpeggiator. The sequencer can go up to 64 steps with pattern chaining and recording functions. The 4 CV/Gate outputs (Pitch, Gate, Mod 1, Mod 2), full-size MIDI DIN In/Out, Sync I/O, pedal input, and USB-C class compliant connectivity allow us to control a wide range of hardware, and thanks to the included software Analog Lab Intro (with a package of more than 500 sounds included) and Ableton Live Lite, we can immediately start working and exploring DAW environments.
Demo on Arturia KeyStep 37 MK2
by Giaga Robot
Arturia KeyStep 37 mk2 is designed to become the operational center of any hybrid setup. It combines extended playability, advanced generative tools, immediate physical control, and comprehensive connectivity to modular environments, analog hardware, and DAWs. It is ideal for jamming, live performances, and developing musical ideas in the studio.
The 37-note Slimkey keyboard with velocity and aftertouch ensures expressive control in a compact format. Dedicated capacitive pitch bend and modulation strips allow for dynamic real-time interventions. The polyphonic sequencer supports up to 64 steps with 8 voices of polyphony, quantized and unquantized recording, overdub, and pattern chaining. The 16-mode arpeggiator integrates generative patterns capable of transforming played notes into evolving phrases with length and octave control.
Mutate and Spice & Dice
The Mutate, Spice & Dice functions allow for real-time variations on patterns, note lengths, silences, and octaves.
Mutate allows you to instantly transform sequences and arpeggios, from subtle variations to radical evolutions.
The Spice & Dice function introduces controlled randomness into rhythmic patterns. Dynamic Gate Length management allows you to sculpt note duration for expressive or percussive results.
Display and controls
The OLED display with clickable encoder improves parameter navigation, while the four dedicated encoders offer direct control over Arpeggiator, Sequencer, and Mutate or can be assigned to MIDI CC and CV/Gate. The MIDI CC system with 4 banks allows access to 16 assignable controls.
Hardware and software connectivity
Connectivity includes USB-C class compliant with bus power, full-size MIDI DIN In/Out, 3.5 mm Sync I/O, sustain/expression pedal input, and four configurable CV outputs as Pitch, Gate, Mod 1, and Mod 2, assignable to velocity, aftertouch, mod wheel, random per step, or pulse per step.
Included software
Analog Lab Intro with over 500 sounds and Ableton Live Lite are included.
New features of Arturia KeyStep 37 MK2
KeyStep 37 mk2 introduces 5 additional keys for a total of 37 notes, 2 additional buttons, and 4 dedicated encoders for managing submenus and generative parameters. This drastically improves playability while maintaining the same operational philosophy.
A strip of 39 LEDs above the keyboard indicates the notes played and the progress of sequences, offering immediate visual feedback. USB-C, Mod 2 output, dedicated power switch, dedicated Mutate button, and improved OLED interface are also introduced.
Arturia KeyStep 37 MK2 technical specifications
Keyboard: 37 Slimkey keys with velocity and aftertouch; 39 LED light guides.
Sequencer
- Polyphonic up to 8 voices
- Up to 64 steps
- Pattern chaining
- Quantized and unquantized recording
- Overdub
Arpeggiator: 16 modes with generative patterns; length and octave control.
Creative modes: Mutate; Spice; Dice; Chord mode; Scale mode.
Compatible with iPad (Camera Connection Kit required)
KeyStep 37 mk2 Controls
- 2 capacitive strips
- 4 encoders
- Clickable encoder
- Off/Seq/Arp mode buttons
- Mutate
- 2 additional buttons
- Tap Tempo
- Transport
- MIDI CC with 4 banks (16 CC)
KeyStep 37 mk2 Connections
- USB-C MIDI class compliant
- MIDI DIN: Full-size In and Out
- Sync In & Out 3.5 mm
- 4 CV outputs: Pitch, Gate, Mod 1, Mod 2
- TRS pedal input
- Power
- Kensington lock
Included software: Analog Lab Intro (500+ sounds); Ableton Live Lite.
Dimensions and weight: Product 547 x 148 x 43 mm; 1.09 kg.
To obtain the included software:
Create an account and register the instrument on the Arturia website. (click here)
NB: The software applications are included free of charge for promotional purposes and may vary over time without notice. Algam EKO is exclusively responsible for the hardware instrument and cannot provide technical or commercial assistance for the free software provided or third-party software used with the product. For software support, consult the manual or online help of the software used.
NB: The use of authorization codes, i.e., the download and activation of the free software provided, forfeits the right of withdrawal.