Arturia KeyStep mkII

The Arturia KeyStep mkII is the ultimate tool that combines inspiration and creation.

With its compact design and advanced sequencing, this controller gives you full control over synths, drum machines, and modular setups—whether in the studio or on stage. Every musical idea can be easily turned into action with expressiveness and precision.

Performance Capabilities

The KeyStep mkII features 32 slim keys with velocity and aftertouch, offering expressive control in a compact size.

The Pitch and Modulation touch strips allow intuitive real-time shaping, while the built-in Chord and Scale functions make exploring new musical ideas effortless. Every performance feels more dynamic and natural.

Idea Engine for Endless Creativity

The KeyStep mkII works as both an inspiration tool and an advanced controller.

It combines a polyphonic step sequencer, a 16-mode arpeggiator, and pattern chaining with creative tools like Mutate, allowing your ideas to evolve organically.

Start a riff with the arpeggiator, turn it into a sequence, and develop it with ease.

Use Mutate for on-the-fly variations, experiment with octaves, adjust note length, add rests, overdub extra notes, or write automation for Pitch Bend and Mod Wheel. Your setup remains creative and flexible at all times.

Compact Design & Portability

Slim, lightweight, and ready for any environment, the Arturia KeyStep mkII delivers professional-level features without the bulk.

Its low profile keeps you close to the instruments you control, while its intuitive layout and ergonomic design enhance both playing and integration into your setup. The durable construction makes it ideal for studio and stage.

Hardware Connectivity & Flexibility

Connect it to whatever you want, wherever you want.

The KeyStep mkII offers full compatibility via USB-C MIDI, MIDI DIN, and Sync I/O, as well as pedal input and 4 CV outputs—Pitch, Gate, Mod 1, and the new Mod 2.

All outputs are fully assignable to velocity, aftertouch, or mod wheel, letting you control modular or analog systems with expressiveness and precision. Easy signal routing makes integration into your existing rig simple.

Features

• 32 slim keys with velocity & aftertouch
• OLED display and push encoder (with Back button)
• Polyphonic step sequencer with pattern chaining, arpeggiator recording into sequence, up to 64 steps
• 16-mode arpeggiator (Poly, Walk, Pattern, Random, etc.) – Phrase Arp adapts patterns to your notes
• Transpose & Tap/Hold, record in real time or in steps
• 2 capacitive touch strips for Pitch Bend and Modulation
• Live controls with Gate Length and Swing for real-time tweaks
• Chord and Scale modes
• USB-C / MIDI power (Class-compliant)
• MIDI DIN In/Out + Sync In/Out (3.5 mm)
• CV/Gate outputs: Pitch, Gate, Mod 1, Mod 2 (assignable to velocity, aftertouch, wheel, etc.)
• Pedal input: Sustain / Expression (TRS)
• Power switch + Kensington Lock port
• Dimensions: 484 × 145 × 50 mm
• Weight: 1.1 kg

Included Software

• Analog Lab Intro
• Ableton Live Lite