Some of you may know that at one point I owned an Optigan organ. I 'inherited' it from Mr cloudhigh (whom God preserve, of Wiltshire and North Oxford) when his parents moved to Wiltshire. It was transported by trailer by the son of one of his parents friends. It sat in the house I grew up in until my Dad moved into a sheltered flat. Then basically we got some house clearance people to flog everything he didn't want and transport the stuff that did. The Optigan went. By that point we owned the house in the West Midlands so I could have kept it, I suppose.
The basic idea is that it has
a) 5 special effect buttons
b) A bunch of chord buttons
c) A polyphonic keyboard of a few octaves
The music is recorded optically, in the way that film used to be until it wasn't. This means you can have all sorts of weird sounds. The downside is that things are at a fixed tempo, unless you slow it down or speed it up which changes the pitch. Hmm.
Well, the best demonstration is probably the TV commercial
https://www.youtube.com/watch?v=MY4hyWds6QkThere are lots of videos demonstrating it e.g.
https://www.youtube.com/watch?v=dO8PRTcfO6E This is allegedly a recording from the master tapes
https://www.youtube.com/watch?v=ZPO9uXPFRRQ it includes the singing voices one 'Singing Rhythm' which I think were the best thing about it. Including the special effects for that one it starts at about 39 seconds
Have people made their own new disks for them? Of course they have. Radioactivox!
https://www.youtube.com/watch?v=apna8Fhb0yEAnd a minimalist one
https://www.youtube.com/watch?v=x54Kc9062Xo And a Drive-In intermission film with music done on an Optigan
https://www.youtube.com/watch?v=KfLdGZvAEd4 So, do I regret not keeping it? Sort of, but probably if I had had it I would have given it to someone else. It has a degree of quirkiness but I'm not sure it was actually that good.