First thing I found when I searched for one was a 3DS one. I suppose the next question would be what kind of information you'd want to get, and from what files exactly. It'll be something that I'll put on the list but as I said before, I'm not sure when I'll get around to it.
Found a sequence that doesn't playback correctly. BGM_ZOMBIES from plants vs zombies. My own analysis says it's an exceptionally simple sequence. Only one track and no flow control, not even a jump at the end. But it does have two tricky things: notewait is on and notes have a length of 0.