Check the listing for details. Arturia KeyStep MK2 32-key Controller and Sequencer - White. Color: White, Condition: New. Listed at 139.00 USD. The Arturia KeyStep MK2 32-key controller and sequencer streamlines creative workflow for synth players and modular enthusiasts. Its compact build houses a velocity-sensitive slimkey keybed with aftertouch, allowing expressive melodic and rhythmic ideas in real time. The central OLED screen and encoder give fast access to controls for live sequencing, pattern building and parameter tweaks. With advanced arpeggiator and step sequencer functions, this unit transforms basic riffs into evolving, multi-layered phrases. Chord and scale modes lock notes to musical intervals, making exploration immediate. Use it in a home studio to control vintage synths, or onstage to trigger modular gear and DAW instruments—this controller keeps your setup tight and hands-on.