Arturia 32-Key Slim Portable USB Controller & Sequencer

KeyStep mk2 is the ultimate compact controller & sequencer for DAWless workflows or hybrid setups. It keeps the core essence of the range - powerful, playful & connectivity-first - while evolving it in ways that matter most.

It serves as a catalyst for creative ideas, uniting generative tools, intuitive control, and performance-ready sequencing in a modern design. KeyStep mk2 is a one-of-a-kind ideas machine with no computer or software required to unlock its full creative potential.

 

Features

• KeyStep mk2 builds upon the original with new generative tools like Mutate, a clearer OLED interface, extended connectivity, a more powerful sequencer and arpeggiator and a refreshed design
• 32-key slim keybed with velocity and aftertouch Comfortable and compact, with expressive control
• Built-in OLED screen and clickable encoder All editing now directly accessible from the hardware
• CV/Gate, MIDI In/Out, USB-C, Sync I/O Full compatibility with modular, DAW, and hardware synth environments
• Sequencer with pattern chaining and unquantized recording From live feel to locked grooves, edit or evolve your ideas.
• Arpeggiator with 16 modes and generative pattern engine Melodic tools for inspiration beyond classic arp types.
• Mutate, Spice, Phrase Arpeggiator Transform sequences instantly without stopping the music.
• Scale and Chord Modes Stay musical, create harmonies, or keep it experimental.

Hardware Details

Back Panel
- Power switch (New)
- USB-C (New)
- MIDI In & Out
- Sync I/O
- Pedal input
- CV Pitch, Gate, Mod 1, Mod 2
- Kensington lock

Front Panel
- 32 slim keys (velocity + aftertouch)
- Pitch bend + mod strips
- Mode buttons: Off, Seq, Arp
- Mutate button
- Screen + clickable encoder
- Tap Tempo + Transport
- RGB LEDs

What's New
Mutate Function
One-touch phrase mutation & generation for endless inspiration. Instantly reshape your sequence or arpeggio with melodic and rhythmic variation for fresh, unpredictable ideas.

Expanded Arpeggiator Options
Now with 16 modes, 9 pattern variations, Arp Length Reset, octave control, and time division - for deeper rhythmic and melodic control.

Enhanced Sequencer Workflow
Supports real-time or unquantized recording, step editing, pattern chaining, and live transformations - more flexibility, more flow.

Scale & Chord Modes
Stay in key with scale locking, and record/play chords with expressive voicings like in KeyLab 3.

Sequence Arpeggiator
Turn any pre-recorded sequence into a real-time arpeggio pattern that follows your played notes.

Seq/Arp Transformation Tools
New sliders and functions let you adjust gate length, add randomness (Spice & Dice), transpose, double patterns, and more - all in real time.