Is there some way to unlock all the songs, so they can be selected for any level, or is it just a small handful that's ever available? I'd love to roll to "La Campanella" without having to do the dad-ratted tutorial, but it doesn't appear in the list. :-(

you know, i never really ever changed the music when i did different levels so i have no idea. perhaps they all unlock when you beat the game?

Nope! I've beaten it, done Chateau Notre Desir, downloaded all the DLC, and I still only have those few songs I can switch to. I don't have all the achievements yet, but I can't imagine the songs unlock that way.

i never tried either, i always played the original song with the level.

i guess it only lets you do certain songs. i'll have to fire up my game and check tomorrow to see if it's different with 100% items

I checked and it doesn't look like you can choose all the songs, only a set few regardless, though i am missing one achievement so there's slight hope. :(

i thought that once i had beaten the game i had all but maybe 1 song unlocked for use at the jukebox or at the level select.

i played the original songs once (the first time i tried a level) just to feel em all out. but once i had found my favs like Guru and Danketsu i ALWAYS selected them everytime! :)