Arturia KeyStep 37 MK2 - 37-Key Compact MIDI Controller & Sequencer

Arturia KeyStep 37 MK2  — Compact creative powerhouse for studio & stage

The Arturia KeyStep 37 mk2 is a powerful MIDI and CV controller designed for musicians working across hardware, software and modular environments. At its core is a 37-note Slimkey keyboard with velocity sensitivity and aftertouch, delivering expressive playability in a compact footprint that fits easily into modern studio and live setups.

A true ideas machine

Beyond traditional controller duties, KeyStep 37 mk2 excels as a creative sequencing and arpeggiation tool. Its polyphonic step sequencer, 16-mode arpeggiator and pattern chaining capabilities are enhanced by generative features such as Mutate, Spice and Dice, allowing sequences to evolve organically in real time. Capture ideas quickly, transform arpeggios into sequences, overdub notes, adjust lengths and octaves, or introduce variation on the fly to keep inspiration flowing.

Hands-on workflow with deep control

Four dedicated encoders provide immediate access to sequencer, arpeggiator and performance parameters, minimising menu diving and supporting fluid, hands-on creation. These encoders are also freely assignable, making KeyStep 37 mk2 equally effective as a custom MIDI CC or CV controller for DAWs, synths and modular systems.

Comprehensive connectivity for hybrid rigs

Designed to integrate seamlessly with almost any setup, KeyStep 37 mk2 offers USB-C MIDI, full-size MIDI DIN I/O, sync connections and a sustain or expression pedal input. Four configurable CV outputs — Pitch, Gate, Mod 1 and Mod 2 — allow expressive control of modular and analogue gear, with assignments for velocity, aftertouch, modulation and more.

KEY FEATURES: 

• 37-note Slimkey keyboard – Velocity-sensitive with aftertouch for expressive performance
• Polyphonic step sequencer – Up to 64 steps with 8-voice polyphony
• Advanced arpeggiator – 16 modes with generative pattern styles
• Creative variation tools – Mutate, Spice and Dice for evolving sequences
• Deep connectivity – USB-C, MIDI DIN, sync I/O and four CV/Gate outputs
• Included software – Analog Lab Intro and Ableton Live Lite

Keyboard

• Keys: 37 Slimkeys
• Velocity sensitivity: Yes
• Aftertouch: Yes

Controllers & Interface

• Pitch control: Capacitive touch strip
• Modulation control: Capacitive touch strip
• Encoders: 4 assignable encoders + control button
• Display: OLED with clickable encoder
• Visual feedback: RGB LEDs

Sequencing & Performance

• Sequencer type: Polyphonic step sequencer
• Maximum steps: 64
• Polyphony: 8 voices
• Arpeggiator: 16 modes
• Performance tools: Mutate, Spice and Dice
• Chord mode: Yes
• Scale mode: Yes

Connectivity

• USB: USB-C MIDI (class-compliant, bus powered)
• MIDI: Full-size MIDI DIN In and Out

CV/Gate outputs:

• Pitch
• Gate
• Mod 1
• Mod 2
• CV assignments: Velocity, aftertouch, mod wheel and more
• Sync: 3.5 mm Sync In and Out
• Pedal input: Sustain / expression (TRS)

Power & Compatibility

• Power: USB bus powered
• Power switch: Yes
• Low-power operation: Yes
• iPad compatibility: Yes (camera connection kit required)
• Security: Kensington lock slot

Physical

• Dimensions: 547 × 148 × 43 mm
• Weight: 1.09 kg

Digital Downloads (buying software)

All software marked as "serial download" or "digital download" will be delivered via email within normal office hours.

Simply add the software to the basket and at the delivery stage in the checkout please select "Digital Download - Software by email" as your delivery method

Delivery Charges (Main Products)

The cutoff for same-day dispatch is 3:30pm but can vary at busier times such as Christmas.

All orders over £99.00 will be delivered free via our standard delivery 2-3 days (UK Mainland)

If you need your item faster we also offer a Priority Tracked service at £3.99 (1-2 days) or Next Day Tracked £6.99

(please ensure you add a mobile number to your order for tracking)

Saturday delivery is available when ordered before 2pm (Mon-Fri)

All orders below £99.00 will start as low as £2.99 depending upon weight and qty(s) (UK Mainland) 

All Delivery options will be available at the delivery stage in the checkout

EU Delivery Times

Non UK Mainland Addresses please allow 1-3 Days
Delivery To Belgium / France / Germany please allow 3-4 Days
Music PC Systems - Please allow 5-7 Working Days build time (UK) 7-14 (Rest of the World)

French - Pour la Livraison s'il vous plaît permet en France 2-4 Jours
German - Für Lieferung Nach Deutschland erlaubt bitte 2-4 Tage

Delivery Notes
On delivery, you must inspect the goods carefully for damage as Inta Audio is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Inta Audio of such within three working days from the date of delivery.

Returns Policy

We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:

1. Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product’s return.

2. Contact our Customer Services Team on 02476 369898 (or e-mail cs@inta-audio.com). We will then send you an RMA number and returns form which needs to be completed and sent back with the returned item(s).

3. (If the order has been unpacked) re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.

4. When returning an item please obtain a ‘proof of postage’ receipt from the Courier.


Returned items must be mailed within 10 days of when the RMA Number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.

Please note: Our returns policy is quite straightforward but there are a number of conditions that we ask our customers to comply with before applying:

1. It is your responsibility to request a return. If you don’t tell us you want to make a return, we don’t know. Once you do tell us, we will do everything we can to action it.

2. If you have not requested a return within 28 days of receiving an order, we will have assumed that you are intending to keep it and we will not authorise a return.

3. We always refund the payment according to how the original purchase was made and aim to do so within 72hrs of the return being received by us.

4. Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.

5. Delivery charges will not be refunded unless the delivered goods are faulty.

6. Replacement products are dispatched immediately after the returned goods have been received and accepted by Inta Audio.

7. Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369898 if you believe your item has developed a fault.

Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Inta Audio to process the return quickly.

If you have any questions about our Returns policy please telephone us on 02476 369898 or email us at cs@inta-audio.com.