I wrote an MMF2.5 extension for playing AHX modules. The HivelyTracker playback routine does all the work, so all I did was basically hook up the plumbing to Fusion's sound engine and action/condition system. AHX modules are actually awesome, although I'm not sure how many people are out there dying to play AHX modules in Fusion. IIRC, this was made mostly to get my foot in the door for a free copy of Fusion 3 since they claimed they were going to give them out for free to extension developers. Unfortunately they still haven't released Fusion 3, 2 years later. Oh well, give this a shot if you want to listen to some Amiga tunes in your Fusion game.