The Arturia BeatStep Pro is a flexible, portable MIDI controller and step sequencer that is equally adept at programming melodic lines for a modular synth or sequencing a drum machine in Ableton Live. Featuring two independent melodic sequencers paired with a full-featured drum sequencer, the BeatStep Pro is capable of arranging entire songs. With 16 slots for projects, which comprise 16 sequences each for both melodic sequencers and the drum sequencer, you can compose an entire setlist worth of material using a single BeatStep Pro. Sporting a full array of CV outputs, plus MIDI and USB connections, everything from vintage synths to cutting-edge software is fair game for the Arturia BeatStep Pro's powerful sequencing and control.