Currently the sc68 library does not allow to assign panning per YM channels. However you can play separate channel(s) with the command line player using the option --ym-engine=pulse --ym-channels=N to select any channel (N is bitfield 1=YM-A 2=YM-B 4=YM-C).
From there you can use another program like sox to mix the 3 channels as you like. If you have no idea how to do that I can help you with it.
I hope it helps.
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Currently the sc68 library does not allow to assign panning per YM channels. However you can play separate channel(s) with the command line player using the option --ym-engine=pulse --ym-channels=N to select any channel (N is bitfield 1=YM-A 2=YM-B 4=YM-C).
From there you can use another program like sox to mix the 3 channels as you like. If you have no idea how to do that I can help you with it.
I hope it helps.