Arturia Keystep Pro

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USB / MIDI controller keyboard with sequencer

37 Mini keys with touch response, aftertouch
LED above each button for visual feedback
4-track step sequencer with 16 step buttons, up to 64 steps per sequence, up to 16 notes of polyphony per step
24-part polyrythm drum sequencer
Melody sequencer with real-time recording, step recording and step editing (pitch, velocity, gate length and time shift)
Performance oriented sequencer
Arpeggiator
Chord mode
Controller mode
OLED display
Metronome output: 6.3 mm jack
4 CV / Gate / Mod outputs: 3.5 mm mini jack
8 drum gate outputs: 3.5 mm mini jack
1 MIDI input
2 MIDI outputs
USB
Clock sync
Sustain pedal input: 6.3 mm jack
Dimensions (W x H x D): 589 x 38 x 208 mm
Weight: 2.7 kg
Includes external power supply and USB cable

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3-Year Thomann Warranty

Available since April 2020
Item number 483153
Sales Unit 1 piece(s)
Aftertouch Yes
Split Zones 1
Layer function No
Pitch Bend / Modulation Yes
Rotary Encoder 5
Fader 0
Pads 16
Display Yes
MIDI Interface 1x In, 2x Out, USB
Sustain Pedal Connection Yes
USB-port Yes
Mains Operation Yes
Battery Operation No
Bus-Powered Yes
Dimensions 589 x 38 x 208
Weight in kg 2,7 kg
Special Features int. polyphone Step Sequenzer, CV/Gate Out, Arpeggiator

£369

All prices incl. VAT

Sales Rank

in Master Keyboards (up to 49 Keys)

Sequencing for the studio and the stage

Arturia's KeyStep Pro is a 37-note polyphonic sequencer and controller designed to coordinate hardware, modular and software instruments from a single central command unit. Combining a three-octave Slimkey keyboard with four independent sequencer tracks and a dedicated drum mode, it extends the KeyStep concept into full performance territory. Each track supports 64-step patterns with up to 16 notes per step, while a crisp OLED display, illuminated step buttons, per-key LED feedback, and touch strips keep editing immediate and visually clear. Track 1 can alternatively function as a 24-part drum sequencer. Pattern chaining, scene recall, and project storage are integrated directly into the workflow, alongside extensive CV, drum gate, MIDI, and clock connectivity. More than a controller, KeyStep Pro functions as a structured compositional and performance centrepiece, capable of shaping entire arrangements from a single surface.

Arturia Keystep Pro USB / MIDI controller keyboard with sequencer in the studio

Deep sequencing architecture

The Arturia KeyStep Pro is built around four independent polyphonic sequencer tracks, each capable of 64-step patterns with up to 16 notes per step. Patterns can be recorded in real time, entered step by step, or edited directly from the illuminated step buttons, with per-step control over pitch, velocity, gate length, timing, and probability. Sixteen patterns per track can be chained into longer structures, while Scenes recall complete multitrack states for live arrangement. The first track can also switch to a dedicated 24-part drum sequencer, with individual lanes and polyrhythmic length control. A performance looper strip enables instant fills and rhythmic breakdowns, while the arpeggiator offers multiple playback modes across a five-octave range. Together, these tools support structured composition and real-time arrangement across hardware and hybrid systems.

Arturia Keystep Pro USB / MIDI controller keyboard with sequencer in action

For performance-focused setups

KeyStep Pro is aimed at musicians who require centralised, hands-on control across multi-instrument environments. Hardware performers can run several synths, drum machines, and modular voices simultaneously, assigning each track to a dedicated MIDI or CV destination. Producers working with DAWs can sequence external gear while remaining tightly synchronised to computer-based sessions. Because each track can function as either a sequencer or arpeggiator, it adapts easily to melodic lines, harmonic structures, or rhythmic programming within the same project. Scene recall, pattern chaining and the Looper strip encourage dynamic arrangement in real time, making it particularly suited to live sets where structure and spontaneity must coexist. For complex hybrid setups, it provides the structural depth required to move from sketch to full arrangement without changing tools.

Closeup of the Arturia Keystep Pro USB / MIDI controller keyboard with sequencer

About Arturia

Arturia's success story began with software emulations of well-known analogue synthesizers such as the Moog Minimoog, Sequential Prophet-5, and Oberheim SEM. The popular software instruments included in the V Collection are still flagship products of the French developer today. Over time, Arturia has gradually expanded its range and now also offers a host of hardware devices, ranging from synthesizers and keyboard controllers to sequencers. Since then, the former software developer has thus also become a household name in the world of analogue synthesizers and other equipment.

Connections on the Arturia Keystep Pro USB / MIDI controller keyboard with sequencer

Connectivity and CV/Gate control

Connectivity is central to KeyStep Pro's role within advanced setups. USB provides bus power and MIDI communication with DAWs and software instruments, while a 12V power input supports standalone use. Full-size MIDI In and dual MIDI Out ports connect directly to external hardware, with the two outputs mirroring each other for flexible routing. Four independent CV/Gate/Mod output groups can address up to four monophonic voices or be combined for polyphonic modular sequencing, complemented by eight additional drum gate outputs. Clock In, Clock Out, and Reset connections keep vintage and modern gear synchronised, while the integrated metronome features both a built-in speaker and a dedicated line output for external monitoring. Whether anchoring a DAW-based studio or a fully hardware rig, the Arturia KeyStep Pro unifies MIDI, CV, and analogue clock control within a single surface.

In the spotlight

A complete production starter suite

Arturia's KeyStep Pro ships with a focused software package designed to complement its hardware sequencing workflow. Analog Lab Intro provides access to 500 curated presets drawn from Arturia's instrument catalogue, offering a broad range of synth, keyboard, and hybrid sounds with streamlined macro-based control. Ableton Live Lite delivers a compact version of Ableton's production environment for recording, arranging, and exporting within a DAW-based setup. Installation and firmware updates are managed via the Arturia Software Center. As bundled software may evolve over time, the manufacturer's website should be consulted for the most current package details. Detailed tutorials and manuals are also available online for users wishing to explore its deeper sequencing and performance functions.

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100 Customer ratings

5 79 Customers 4 10 Customers 3 9 Customers 2 2 Customers 1 0 Customers

4.7 / 5

handling

features

quality

Review guidelines

68 Reviews

The final step evolution

PhiLanalog 09.10.2020

Years back as a DAWless hardware player I started with 1 Beatstep, then upgraded to 2 Beatstep Pro, and after I moved to 3 Keysteps. Now with 4 machines in 1 Keystep Pro, I can discard all oldies because this Keystep Pro does everything - and more - what its predecessors could do.

Handling: It seems I can play only one of the 4 channels solo when the others are sequencing. I cannot select 2 channels simultaneously for combined solo. Sure I could set midi channel via the menu dive but that is not an option for live stage.

Also, I tried to use an external analog clock to control the BPM of the KSP using the auto clock-in, but the KSP did not react in any way to the external clock, but through the midi control center I could set the sync in on clock and at 1ppq, so that did the trick. So now I can play the KSP at less than 1 BPM which is great for super slow soundscapes. That increased the stars for features from 3 to 5.

Features: For more complex sequences I can insert up to 16 phrases in one sequence. Which in a way increases the number of steps to 16x16=256 per sequence.

Quality: After two months of usage, I wanted to upgrade the firmware through usb on macbook. The moment I connected usb, the KSP power failed and I had to return it for repair. Thomann fixed it quickly, thank you, and that increased the stars for quality from 2 to 4.

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Best MIDI Keyboard Sequencer ever for Analog Synthts

Yigitbak 23.05.2021

I needed a device that it can control various synths at the same time while building up the jam. Keystep Pro has been so far the best tool for me to bring out those sounds! Learning phase was quite quick and after 2 months of playing around I can quickly build a beat or create sequence with the help of chain mode. I hooked 4 different desktop synth (Three Roland boutique units and one rack synth JV 1080, minimal effects with Ableton) . I have to say, everytime when I turn my system on, a great jam is starting! And it just get better until I stop it!

But sadly there few issues I had, mostly syncing problems which I had to fight my way around. I updated fireware and worked my around midi routing but after tweaking around, everything is working now synced nicely! It is also not possible to record the arp mode in to a pattern easily, I find that a pity, maybe it will be fixed in the future updates?

I wish Arturia had released a bigger version of Keystep Pro where you can control more aspects of the sequencer. I have been enjoying this beauty since 2 months but I feel like there is a world to explore with it!

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Will never get rid of this

Izmotion 10.12.2020

I've been using the Keystep Pro with a multitude of instruments: Software, new hardware, old/vintage hardware. As long as you can connect it, you'll be able to mess with it. The additional CV outputs just add another cherry on top of this already "sort of modular" workflow of the Keystep Pro.

Once you learn how it works (and once you set it all up with your instruments), it's super easy to get into & just start creating new tracks.
I love that the Keystep Pro doesn't hinder any creativity; it just creates this universal control unit to operate everything else you have. It's great!

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DAWless Recording Comes of Age

Recover Chris 09.04.2025

I was a little late to the party with this as I know this unit has been around for several years. But I decided to give myself another option in the studio rather than always working on Logic Pro inside the computer.
I have been moving back over to hardware and this Arturia now controls a bank of Volca's, Behringer 2600 and a host of other vintage kit.
It works like a dream and adds a tactile approach to music creation that is, in my opinion, missed with a Computer DAW.
It is packed fuil of features and easy to use and set up and most of all it is FUN!!

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Arturia Keystep Pro

USB / MIDI controller keyboard with sequencer