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Arturia KeyStep Keyboard Controller and Step Sequencer

Keystep is a portable USB MIDI controller combining the functionalities of a keyboard controller with a polyphonic step sequencer to control both analog and digital devices

Key Features:

  • 32-note USB keyboard
  • Polyphonic step sequencer
  • CV and MIDI connectivity
  • Arpeggiator and a chord mode
  • 'Slim' type velocity-sensitive keys with aftertouch
  • Adjust gate times and swing settings on the fly, and record, overdub and transpose sequences in real time

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    Product Code: 100263823

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    Regular Price: £110.00

    Special Price £97.00


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    Versatility is key
    KeyStep is made to widen the potential of your setup, regardless of what instruments compose it. It is compatible with practically all existing synthesizers, either analog or digital, hardware or software. .

    CV for enthousiasts
    The three CV outputs send pitch and gate signals along with velocity, aftertouch or mod. ribbon signal to control an analog instrument or module.

    Digital & Analog
    The MIDI DIN output can be used to control any MIDI hardware instrument while the USB connection allows you to control your plugins and virtual instruments.

    Sustain or not sustain
    KeyStep also integrates a socket for a sustain pedal, sync input and output to follow or send a clock signal, and MIDI input to use an external keyboard or use KeyStep as a MIDI to CV converter.



    Never before has a portable keyboard controller incorporated this quantity of features.

    Having many devices, many plugins and many modules is a pleasure. Nobody makes secret of it. However, few things are more frustrating than accumulating instruments without being fully able to use them. KeyStep allows you to regain control over your instruments.

    KeyStep is loaded with features aimed at boosting your creative freedom. A 32-slimkey keybed with velocity and aftertouch, an 8-mode arpeggiator, a polyphonic equencer with up to 64 steps and 8 simultaneous notes per step.



    Like its brothers BeatStep and BeatStep Pro, KeyStep is representative of a new breed of portable controller allowing musicians to free themselves from their computer, in particular in live conditions.

    KeyStep is all about spontaneity and immediacy, strengthening the link that musicians can experience with their performance and their public. Each feature has been thought out to match live artists hopes and needs including real-time sequence rewriting, smart sequence-swapping function and simultaneous playing/sequencing.

    KeyStep will give an unprecedented magnitude to your live sessions.


    Three modes of operation


    In Sequencer mode you can record, play and transpose a polyphonic sequence with up to 64 steps and 8 simultaneous notes per step. Sequencer mode also allows you to rewrite in real-time your sequence and even to play and sequence simultaneously on two different MIDI channels.


    The arpegiattor allows you to play each note of a chord consecutively instead of simultaneously. The eight possible playing directions and the Time Division knob will enable the creation of complex and mazy melodies.


    KeyStep stands up to most of the bigger keyboard controllers thanks to its prolific array of features including a custom 32-slim-key keybed with velocity and aftertouch, highly reactive pitch and modulation capacitive ribbons and above all the possibility of controlling almost every type of synthesizer by MIDI and CV.

  • Arturia’s own Slimkey keybed with velocity and aftertouch
  • Arpeggiator mode:
    • Up, down, inclusive, exclusive, random, note order, double up, double down modes
  • Sequencer mode:
    • 8 polyphonic step-sequences with Rest, Tie, and Legato note entry
  • Rate control and tap tempo:
    • REC, PLAY, and STOP buttons for performance control over the sequencer and arpeggiator
  • Sustain HOLD button
  • Sustain pedal jack
  • Chord play mode
  • SHIFT button selection:
    • MIDI channel selection, GATE time, SWING values
  • DC jack for standalone operation
  • USB MIDI connects to computers and our MCC editor
  • MIDI in/out ports
  • Sync i/o ports:
    • Supports 1 pulse per step, 2 PPQ (Korg Volca), 24 PPQ DIN sync, 48 PPQ DIN sync
  • Sync select switches:
    • Internal, USB, MIDI, Clock
  • CV/GATE outputs:
    • CV supports 1Volt per octave, Volt>Hz modes, Gate output 5V or 12V for modern or vintage gear support
    • CV Velo/Aftertouch/Modwheel output
  • Capacitive-touch pitch bend and mod wheels
  • Each sequence can have 64 steps, each step can have up to 8 notes
  • Low power; can be powered by Apple iPad® (camera connection kit required)
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