Holy shit FUCK Reversal Mountain.
I love the song, but then I tried porting it to Crystal and it's the most frustrating experience I've ever had with ROMhacking. The trumpet sections themselves were a pain in the ass even without syncing them with the other channels because of how freeform they are, getting it to sync up with the string and percussion was its own nightmare, and THOSE FUCKING BELLS. Fuck those bells so much, it took me way too long to get them to at least somewhat match the rest of the song without sounding like they're off-rhythm, and even after that it sounds like you're switching from one song to another when the bells start and stop.
Hopefully the effort was worth it.
https://soundcloud.com/mmmmmmmmmmmmmmmmm-1/reversal-mountain-white-gbc-8-bithttp://pastebin.com/mUzX8S44 