Refers to a method of controlling a synth, usually an analog synthesizer, from an external source by inputting a control voltage which determines which note will be played, and a gate signal that indicates the pressing and releasing of a key. CV/Gate interfaces and hardware sequencers were widely used prior to the advent of MIDI and polyphonic synths.


In 1977, Roland Corporation released the MC-8 Microcomposer, also called computer music composer by Roland. It was the first standalone, microprocessor-based, digital CV/Gate sequencer.[1][2][3]