I tried creating an SNES version of another official-but-not-in-the-SNES-version song. "One Sunny Day When We Met" is my favorite of the four PSX/DS bonus tracks, so that's what I went with.
I can't say for 100% certain, but I'm pretty sure it was made to sound like an SNES track, but without strictly observing the SNES's eight channel limit. I know the PSF version uses more than eight channels (I think it was using around fourteen, but I'd have to double-check), but due to the way the channels are managed it's hard to say for sure if more than eight are ever playing at once. I would asssume so, because I think the way it works is that the channels are dynamically assigned as needed, so there wouldn't be more than eight used if they weren't all needed, but I really don't know much about the PSX sound hardware. At any rate, I had to do some channel juggling and corner cutting to get it all in there.
I didn't bother with an IPS patch this time, but I can make one if somebody wants it.
I don't know if I'll do more of these or not. If I do I'll probably rename this thread and keep them all in here so I don't spam the board up too much.