The Korg SQ-1 is a compact step sequencer with 2 x 8 steps. Its wealth of connection jacks allows it to be connected to the MS-20 and a variety of other synthesizers. Vintage analog synths or the latest compact synths can be controlled from this single unit. You can also switch between a variety of sequencer modes and use the step buttons to create performances overflowing with spontaneity just as when using a volca unit.