Arturia KeyStep 37 mk2 is aimed at producers, keyboardists and modular synth enthusiasts looking for a compact yet complete controller. It combines an expressive keyboard, advanced sequencer and extensive connectivity. You can compose, sequence and control your setup without constraints. It’s the right choice for both home studio and live performance, with an excellent feature-to-size ratio.
– Compact size but really usable 37-key keyboard – Powerful sequencer and arpeggiator without the need for a computer – 4 configurable CV/Gate outputs, rare at this price level – Compatible with iPad and hybrid hardware/software setup – Requires Camera Connection kit for iPad – No dedicated AC power supply: power via USB
FEATURES
EXPRESSIVE, COMPACT 37-KEY KEYBOARD
The Slimkey 37-key velocity- and aftertouch-sensitive keyboard lets you play with nuance without taking up too much space. Ideal for a home studio desk or compact live setup. You gain expressiveness without sacrificing mobility.
INTEGRATED POLYPHONIC SEQUENCER
The step-by-step sequencer with up to 64 steps and 8 voices lets you create melodic lines, chords or basses without opening your DAW. Program an idea, loop it, transform it. Perfect for composing fast or driving an external synth live.
16-MODE ARPEGGIATOR AND IDEA GENERATION
The 16 arpeggiator modes, combined with the Mutate, Spice & Dice functions, generate instant variations. You start with a simple riff and get new musical directions in real time. A real inspirational tool for breaking out of classic patterns.
CHORD AND SCALE MODES
Chord and Scale modes make harmonic creation easy. You stay in the right key and trigger complete chords with a single finger. Ideal if you’re new to music theory or want to compose faster.
DIRECT, CUSTOMIZABLE CONTROL
The 4 assignable encoders and MIDI CC button (4 banks, 16 controllers) give you immediate access to essential parameters. You can control a virtual instrument, an external module or CV outputs without having to go through complex menus.
FULL STUDIO AND MODULAR CONNECTIVITY
MIDI USB-C, MIDI DIN In/Out, Sync 3.5 mm, pedal input and 4 configurable CV/Gate outputs: you can connect virtually anything. Control a modular system, hardware synth or software. A single keyboard to centralize your setup.
- Keyboard
- 37-key Slimkey keyboard, velocity-sensitive with aftertouch
- Touch controls
- 2 capacitive touch strips (pitch-bend & modulation)
- Sequencer
- Polyphonic step-by-step sequencer: up to 64 steps, 8 voices
- Arpeggiator
- 16 modes with generative pattern styles
- Creative tools
- Mutate, Spice & Dice functions for live variations
- Harmonic modes
- Chord and scale modes
- Display
- OLED display with clickable encoder and RGB LED feedback
- Encoders
- 4 encoders + control knob
- Editing
- Advanced editing of Sequencer, Arpeggiator, Chords and Mutate functions
- MIDI CC
- MIDI CC button with 4 banks (16 assignable CCs)
- CV/Gate outputs
- 4 assignable outputs (Pitch, Gate, Mod 1, Mod 2)
- MIDI connection
- MIDI DIN full format In/Out
- MIDI USB-C (class-compliant)
- Sync
- Sync 3.5 mm In/Out
- Pedal input
- Sustain/expression pedal input
- Power supply
- Power switch
- Low-power operation
- Security
- Kensington security slot
- Compatibility
- iPad® compatible (Camera Connection kit required)
- Software included
- Analog Lab Intro (over 500 sounds)
- Ableton Live Lite
- Box contents
- KeyStep 37 mk2
- USB-A to USB-C cable
- Dimensions
- 547 × 148 × 43 mm
- Weight
- 1.09 kg

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