Thanks for your response however I think I may have worded my post incorrectly.
I do not intend to MIDI OUT from the Amiga, just purely use a MIDI keyboard as a controller for a tracker so I can play using samples/instruments.
Perhaps a MIDI interface rather than a module then. I own a Roland MT-32, I'm assuming the Yamaha model you mentioned is a similar multi-timbre style MIDI module?
Please let me know if I am not making sense. I read a post from yourself regarding a Project XG that was published on CU Amiga back in the day, I'm assuming this is what you were mentioning above? Not sure if this is purely for processing MIDI files via this card or if it is used as a MIDI signal path i.e IN/OUT to the Amiga.