The GM Standard was updated to GM2 in about 2000 to take into account the latest technologies that were available, therefore one can assume GM3 is being worked on which will address the current limitations of GM2. (Don’t forget Midi itself came out about 1983/4, (With GM standard about 1990) and if you compare it to GM2 it looks very primitive)
Enjoy whatever you play

Bill
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English Riviera:
Live entertainment, Real Ale, Great Scenery, Great Beaches, why would anyone want to live anywhere else (I�m definitely staying put).