A musicsequencer (or audio sequencer or simply sequencer) is a device or application software that can record, edit, or play back music, by handling note
possibly song sequences. These analog-digital hybrid machines are often called "Analogue-style MIDI step sequencer" or "MIDI analogue sequencer", etc. Doepfer
was widely used in the epoch of analog modular synthesizers and CV/Gate musicsequencers, since the introduction of the Roland MC-8 Microcomposer in 1977
music technology company Arturia since 2016. The keyboard produces both MIDI and control voltage (CV) signals. The Keystep also includes a sequencer and
microprocessor-based digital sequencer. Like its predecessor, the MC-4 is a polyphonic CV/Gate sequencer. This sequencer was released before the advent