From what I can gather, it was an organ like device which used an Lp sized vinyl disc encoded optically with pre-sampled sounds - Originally built by a toy company, Mattel, in 1972.
Here's a couple discs for it on ebay now, one which has the tones of the majestic pipe organ on it - THAT could be pretty neat. I'd like to play with one some time.
Here in this video you can see a fella fingering his Optigan.
I can hear with my little ear that the turntable speed has the accuracy of a close-n-play. This system could have worked very nicely if the turntable drive was built like a high accuracy machine and not a toy.
It's still very cool. I'd love to have one to play with some time and will keep an eye open for the discs in the thrift store bins.
Interesting instrument-but was it to be a toy or a musical instrument-I am confused.The device would be something to have and "play" around with.I would also have to venture to guess its demise could be due to the development of processor based synthesizers and organs also coming out at that time.In the demo videos the playing of its discs backward was another way to add dimension to its sounds.You would have to handle the discs with some care-or the scratches would be "read" by the optical sound head like scratches on film.Who knows the scratches may add another effect to the music.Guess another thing to hunt for at yard sales and thrift -swap shops.
Too bad they don't show more of the "Optiganist"instead of the bozo lead singer-and the goofy "breakdance" scenes.I wanted to see primarily the Optigan and how it was played.
Anyway, on the credits, he's playing a "Laptoptigan", which I'm guessing he is really playing a laptop with samples from an optigan. I guess that's more reliable then trying to use a real Optigan in a concert setting.