iOptigan App for FREE for One Week
Because the world is on lockdown, Stefan Stenzel of ioptigan is adding a bit of lo-fi distraction to your social isolation by offering iOptigan app for FREE for one week! Go grab it now!

The Optigan, short for Optical Organ, was a chord organ from the early 1970’s. It is remembered today for its unique system of sound reproduction using optical discs. These LP-sized film discs were optically encoded with 57 concentric tracks, which contained loops of musical combos playing chord patterns in different styles.
Each disc contained a specific style of music (Bossa Nova, Big Band etc) which the user could control by pressing the chord buttons. Changing the discs was as simple as putting a new record on your turntable. Think of it as the 1971 version of GarageBand.