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long post, sound card stuff
ESFM has a couple of advantages over a real OPL3
Primarily in being able to map more than six 4-op voices, which allows for some more complex sounding music.
However this only applies to the native mode of the chip, which is only ever taken advantage of by midi playback in Windows.
long post, sound card stuff
also, that ability to map more 4-op voices comes from it having twice as many operators to work with
72 as opposed to 36