Originally Posted By: rharv
Quote:
Aren't the sounds in ANY synthesizer GM?

No, not every synth has a GM sound set, though many (most?) do.

First example that comes to mind is a Moog .. yeah I'm that old. There are modern day examples also.
Yup. The Kurzweil PC4 doesn't have a GM bank. (The PC2 and PC3 both do.)