I’ve always been interested in additive synthesis, and I figured a K5/K5m would be a great way to play with it. The display needs to have the EL foil replaced, and it’s a bit hard to read. So I’ve never really gotten around to trying it out much.
And since getting the Fairlight, where it’s pretty easy to do additive synthesis, it may be a while before I get back to the K5m.
It does have some interesting sounds in it though…