Optigan

The Optigan (a portmanteau of optical organ) is an electronic keyboard instrument designed for the consumer market. The name stems from the instrument's reliance on pre-recorded optical soundtracks to reproduce sound. Later versions (built under license and aimed at the professional market) were sold under the name Orchestron.^[1]^[2]

^ Brend, Mark (2005). Strange sounds: offbeat instruments and sonic experiments in pop. Hal Leonard. p. 104. ISBN 978-0-87930-855-1.
^ Lenhoff, Alan; Robertson, David (2019). Classic Keys: Keyboard sounds that launched rock music. Denton, Texas, USA: University of North Texas Press. pp. 275–276. ISBN 9781574417760.

[brend-1] Brend, Mark (2005). Strange sounds: offbeat instruments and sonic experiments in pop. Hal Leonard. p. 104. ISBN 978-0-87930-855-1.

[Lenhoff-2] Lenhoff, Alan; Robertson, David (2019). Classic Keys: Keyboard sounds that launched rock music. Denton, Texas, USA: University of North Texas Press. pp. 275–276. ISBN 9781574417760.

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