KeyStep Pro Chroma

Sequencing mastermind recolored

KeyStep Pro Chroma is a special-edition version of the unparalleled 4-track sequencer & keyboard, embellished with a sleek dark gray finish, great-feeling knob caps and customizable track colors. The same all-in-one power, with more edge.

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The future is

Rediscover the controller keyboard that changed the sequencing game, upgraded with a futuristic exterior and supercharged with unique creative functionality.

Chroma aesthetic

Retrofit your musical setup with sleek cyberpunk attitude. KeyStep Pro Chroma features a dark gray casing, vivid blue LEDs, and striking knob caps.

Customize your flow

Exclusive to KeyStep Pro Chroma, you can customize the LED colors for each of your tracks - so every project and composition looks as unique as it sounds.

The must-have sequencer

KeyStep Pro remains the benchmark for hardware & software sequencing and creative performance alike. Chroma is no exception: your sequencing mastermind.

Abundant connectivity

From Eurorack modules, to analog synths and VST’s, synchronize all your gear and unleash your creativity in style.

dark mode

Fusing utility with aesthetics, creativity with beauty, and sleek design with vivid color, KeyStep Pro Chroma delivers next-level performance with pure style.


A dark gray shell simultaneously gives this controller space station futurism and classic car attitude.


Icy blue LEDs illuminate Chroma’s metal exterior, while customizable track colors inject perfectly-contrasting vibrancy.


Complementing the cool gray shell and vivid LEDs, Chroma’s controls feature premium, great-feeling stylish caps.

Control hardware, software & DAW
at the same time

Looking for the best modular sequencer?

How about a MIDI controller for Ableton? Or a live performance keyboard that can sync all of your favorite synths to a DAW click track? KeyStep Pro's extensive list of controls, connections, and creative functions are designed to tick every box - let's take a closer look:

The ultimate
multi-function controller

Command complex hardware setups, entire DAW setlists, modular racks, and more - all with a user-friendly workflow that prioritizes creativity.

KeyStep Pro remains unique and unmatched in its balance of performance-oriented playability, massive connectivity, and creative depth.

  • 3-octave keyboard with velocity and aftertouch
  • 4 independent polyphonic sequencer tracks
  • 24-part integrated drum sequencer
  • Unparalleled MIDI, CV, and USB connectivity
  • Crisp OLED display and LED-illuminated controls
  • Create with chains, projects, patterns, and scenes
  • Hundreds of out-of-the-box sounds with Analog Lab Intro
  • Augment your live set-up with Ableton Live Lite
More info


  • Engadget

    On KeyStep Pro

    “Arturia's KeyStep Pro is a near-perfect MIDI controller for hardware synths The playability of the KeyStep and sequencing power of the BeatStep Pro in one affordable package.”

  • Future Music

    On KeyStep Pro

    “For melodic sequencing duties and flexible hardware control, this is one of the best devices on the market.”

  • MusicTech

    On KeyStep Pro

    “It does everything you'd want it to, in an accessible way. We have an enormously enjoyable time with KeyStep Pro.”



Main Features

Unique dark gray design with blue LEDs and stylish knob caps

Customizable track colors

37 note slim keys, velocity and aftertouch sensitive

  • LED above each key for efficient visual feedback

Four track step sequencer

  • 16 step buttons, up to 64 steps per sequence
  • Up to 16 notes of polyphony per step

Melodic sequencer

  • Real-Time recording, step recording, step editing
  • Pitch, velocity, gate length, time shift and probability for each note
  • Scale quantization with user scales
  • Polyphonic CV outputs

Drum sequencer

  • 24 part drum sequencer
  • Polyrhythm

Performance-oriented sequencer

  • Forward and two random playing modes
  • Pattern randomization
  • Quantized or unquantized recording
  • Looper


  • 7 arpeggiator modes, 5 octave range

Chord mode

Controller mode

  • Use the 5 encoders to send CCs
  • Automate the CCs

Crisp OLED display

4x (CV, Gate, Mod) outputs + 8 drum gate outputs

1 MIDI in, 2 MIDI out, USB, Clock synchronization

Metronome with included speaker and line output

Sustain pedal input

What's in the box

Box content

  • KeyStep Pro unit
  • Registration card
  • Quick Start
  • USB cable
  • Power supply


  • Size : 23.2 x 8.2 x 1.5 inches (589 x 208 x 38mm)
  • Weight : 5.9 lbs. (2.7 Kg)