I've had a dozen requests to cover this synth and I said I'd do it if I was able to get hold of one and I'm glad to say that that happened. The CS-15 is a two-oscillator analogue monosynth from 1979 that has an awful lot more to it than meets the eye. The signal and control routing is so much more flexible than many other comparable synths from this era that command legendary status and so I'm kind of baffled as to why the CS-15 doesn't seem to be held in the same high regard.