Arturia KeyStep

Arturia KeyStep is a MIDI controller and sequencer designed for use with electronic music production. It is a compact, portable device that allows users to control their synthesizers, drum machines, and other MIDI-enabled instruments. It has been used by a variety of artists, including Aphex Twin, Deadmau5, and Skrillex.

The KeyStep features a 32-key keyboard with velocity and aftertouch sensitivity, as well as a polyphonic step sequencer with up to 64 steps. It also has a built-in arpeggiator, a chord mode, and a variety of performance controls. Additionally, it can be connected to other MIDI devices and used as a master controller. The KeyStep also has a USB port for connecting to a computer, allowing users to control their DAWs and other software.