Detail 01
37-note velocity-sensitive Slimkey keyboard with aftertouch
Provides a compact playing surface with velocity and aftertouch response.
Product detailSKU #1500000479270
ArturiaKeyStep 37 mk2 37-Key Controller & Sequencer - White
1/5
Independent shopping perspective
The Korena take
KeyStep 37 mk2 is a compact white MIDI controller and sequencer with a 37-note Slimkey keyboard, velocity sensitivity, and aftertouch. The added key range gives melodic and bass parts more room than the 32-key format while keeping the series’ compact approach. Use its polyphonic 64-step sequencer, 16-mode arpeggiator, Chord and Scale modes, or hands-on encoders to develop and vary patterns. USB-C MIDI, DIN MIDI, Sync, CV/Gate, and pedal connections let it sit between software and hardware setups.
Strong match
Who this is for
- Desktop or travel production setups needing 37 keys, sequencing, and USB-C MIDI bus power.
- Linking MIDI gear, sync-equipped hardware, and CV/Gate destinations from one compact controller.
- Creating and varying polyphonic patterns with the sequencer, arpeggiator, Mutate, Spice, and Dice tools.
Consider the trade-offs
When to look elsewhere
- iPad connection without a camera connection kit.
- Users who need more than 37 keys in a single controller.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Up to 64 steps and 8-voice polyphony
Sequences can contain up to 64 steps with up to eight voices.
Detail 03
Four CV/Gate outputs: Pitch, Gate, Mod 1, Mod 2
Offers four dedicated outputs for connected CV/Gate gear.
Detail 04
Four assignable encoders; 16 MIDI CC assignments across four banks
Gives direct, configurable control over MIDI CC and CV/Gate destinations.
Detail 05
USB-C MIDI, MIDI DIN In/Out, and 3.5 mm Sync In/Out
Connects with USB MIDI devices, traditional MIDI hardware, and sync-equipped gear.
Final check
Know before you order
- 01iPad use requires a camera connection kit.
- 02The included cable is USB-A to USB-C.
- 03The pedal connection accepts a sustain or expression TRS pedal.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Does KeyStep 37 mk2 have aftertouch?
Yes. Its 37-note Slimkey keyboard is velocity-sensitive and includes aftertouch.
02Can it sequence polyphonic parts?
Yes. The polyphonic step sequencer supports up to 64 steps and 8-voice polyphony.
03What software is included?
Analog Lab Intro and Ableton Live Lite are included.
04Can it connect to hardware as well as a computer?
Yes. It has MIDI DIN In/Out, Sync In/Out, and Pitch, Gate, Mod 1, and Mod 2 CV/Gate outputs.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsSound
- Velocity Sensitivity
- Yes
- Polyphony
- 8-voice
1 detailsPickups & controls
- Power Switch
- Yes
2 detailsPlayability
- Keys
- 37-note Slimkey keyboard
- Scale Mode
- Yes
2 detailsBody & build
- Color
- White
- LED Feedback
- RGB LED feedback
3 detailsConnections & power
- Pedal Input
- Sustain or expression TRS input
- Cv Outputs
- Pitch, gate, mod 1, mod 2
- Power Source
- USB bus powered
22 detailsOther
- Pattern Chaining
- Yes
- USB MIDI
- USB-C class-compliant
- Lock Slot
- Kensington
- Software
- Analog Lab Intro, Ableton Live Lite
- Ipad Compatibility
- Yes, camera connection kit required
- Cv Assignable
- Velocity, aftertouch, mod wheel and more
- Chord Mode
- Yes
- MIDI Din
- Full-size MIDI in and out
- MIDI Cc
- 16 assignable across 4 banks
- Model
- KeyStep 37 mk2
- Steps per Pattern
- Up to 64
- Display
- OLED display
- Accessories
- USB-A to USB-C cable
- Encoders
- 4 assignable encoders with control button
- Generative Tools
- Mutate, Spice, Dice
- Sync
- 3.5 mm sync in and out
- Sequencer Type
- Polyphonic step sequencer
- Editing
- Mode-aware hands-on editing
- Product Type
- MIDI controller and sequencer
- Touch Strips
- 2 capacitive strips for pitch bend and modulation
- Arpeggiator Modes
- 16
- Aftertouch
- Yes
