MSX music using Fusion-C (based in roboplay)

Hi!

I want to create MSX music using ProTracker and play it in Fusion-C applications. I've seen that roboplay is a replayer that uses Fusion-C and OPL4. I've read that the FM part of OPL4 is compatible with MSX Music. Does it mean that it uses the same registers? Thus I would be able to use roboplay to play using MSX Music. Otherwise, I would have to port the player part of roboplay and change the OPL4 registers by the MSX Music ones