Scott developed some of the first devices capable of producing a series of electronic tones automatically in sequence. He credited himself as the inventor of the polyphonic sequencer. His electromechanical devices, some with motors moving photocells past lights, bore little resemblance to the all-electronic sequencers of the late Sixties. He began working on a machine he said could compose by artificial intelligence. The Electronium, as Scott called it, with its array of knobs, buttons, and patch panels is considered the first self-composing synthesizer.