Arturia KeyStep 37 MK2 – Compact Controller & Hybrid Sequencer

The Arturia KeyStep 37 MK2 is a compact controller and sequencer designed for musicians who blend hardware and software in one creative workflow. With an expressive 37-note Slimkey keybed, hands-on encoders, generative sequencing tools, and deep connectivity including CV/Gate, MIDI DIN, and USB-C, it acts as a central command hub for studio and live setups.

Key Features

• 37-Note Slimkey Keyboard: Velocity and aftertouch support provide expressive control in a compact format.
• Polyphonic Step Sequencer: Create up to 64-step patterns with 8-note polyphony, including overdub and real-time editing.
• 16-Mode Arpeggiator: Explore classic and generative arp styles including Poly, Random, Walk, and Pattern variations.
• Mutate, Spice & Dice Tools: Introduce controlled randomness and musical variations for evolving sequences.
• Mode-Aware Encoders & OLED Display: Four encoders automatically adapt to Sequencer, Arp, Chord, or Mutate modes for intuitive editing.
• Comprehensive Connectivity: CV/Gate outputs, full-size MIDI DIN I/O, Sync I/O, sustain input, and USB-C ensure seamless integration with modern and vintage gear.

Customer Benefits

The KeyStep 37 MK2 bridges digital and analogue workflows, allowing you to control modular systems, hardware synths, and software instruments from a single compact unit. Its generative tools encourage experimentation, while direct hands-on controls make performance and editing fluid. Whether sketching ideas in a DAW or driving a live hardware rig, it provides expressive control and flexible sequencing in one portable keyboard.

Quick Specs

• Keyboard: 37-note Slimkey with velocity & aftertouch
• Sequencer: 64 steps, 8-note polyphony
• Arpeggiator: 16 modes
• CV/Gate outputs: 4 assignable outputs (Pitch, Gate, Mod 1, Mod 2)
• MIDI: Full-size DIN In/Out, MIDI Thru support
• Sync: 3.5 mm Sync In/Out
• USB: USB-C, class-compliant MIDI & bus power
• Pedal input: Sustain / expression (TRS)
• Dimensions: 54.7 × 14.8 × 5.8 cm
• Weight: 1.09 kg

What’s in the Box

• Arturia KeyStep 37 MK2
• USB-A to USB-C cable

Use Cases / Ideal For

Ideal for electronic music producers, modular synth users, live performers, and hybrid studio setups combining hardware and software instruments.

Compatibility

Compatible with Eurorack modular systems via CV/Gate, hardware synths and drum machines via MIDI DIN and Sync, and computers or tablets via USB-C MIDI.

Pros & Cons

✅ Pros:

• Expressive keybed with aftertouch in a compact size
• Powerful generative sequencing tools
• Deep modular and MIDI connectivity
• Mode-aware encoders simplify workflow
• Portable and bus-powered via USB-C

⚠️ Cons:

• No built-in sound engine
• Compact keys may feel small for traditional piano players

The Arturia KeyStep 37 MK2 combines expressive control, generative sequencing, and universal connectivity in a compact format built for modern music creation.