Thread: Korg ms20
Actually, Korg and Yamaha did use a gate/trigger system that was compatible with Moog, since they also used a negative-going trigger.
The following are non-standard synth manufacturers and models, plus why:
Moog (thru Micromoog), Yamaha (CS-series monosynths), Korg (everything up thru the MS-series), Crumar (some): negative triggering
Yamaha, Korg (both same as above): Hz/V scaling
EML: 1.2 V/8va scaling
Buchla: no actual scaling standard (100 series)
...and of course, faithful copies retain these traits. The Korg and Behringer reissues of the MS-20 behave the same as the original, and the EMW 200/300 both use EML's old 1/10th volt scaling.