I think those songs are great. Or at least infinitely better than stuff like Neraiuchi or Shanghai Honey. Here's the funny thing though, those are two of my favorite levels, so even if you don't like the music, at least wait to play the thing, it will still be fun.
Can't find any threads about this particular issue on GBAtemp or the wider intarwebz. Saw one video on YouTube that seemed relevant, but it was some dude with the same issue, no solutions offered in the comments. :/