Optigan Disc "Bossa Nova STYLE" NEW and SEALED | eBay
iOPTIGAN – Optigan
Mattel Optigan Music Disk - Bossa Nova Style 1970s | Reverb
MATRIXSYNTH: Optigan discs and songbooks / nearly complete collection
Stream Bossa Nova Style - Optigan (Master Tape) by Freaky | Listen online for free on SoundCloud
Forgotten Technologies: The Optigan
Johnny Largo – Bossa Nova Style (1970, 12", Optical Disc, Program Disc, All Media) - Discogs
Them Crooked Vultures's 'Interlude With Ludes' sample of Optigan's 'Bossa Nova Style' | WhoSampled
Optigan® Disc – CHILTON TALENTMAKER BOSSA NOVA – Optigan
Mattel Optigan Music Disk - Bossa Nova Style 1970s | Reverb
Pea Hicks: Optigan Life | Tape Op Magazine | Longform candid interviews with music producers and audio engineers covering mixing, mastering, recording and music production.
Bossa Nova Style by Optigan - Samples, Covers and Remixes | WhoSampled