I've encountered a bug: Kirill the bard in the battle tower throne room can't change music anymore. For example when I tell him to do the happy ditty theme the game ignores it and just play the creepy music.
And I think I've found the way to replicate the bug: first I let him do "A" music of my choice, then I change to another platform, and when I'm back to the throne room, the music "A" can't be played anymore. By repeating this I proceeded to deny access to all the 5 music (which I'm not happy of!!).
Of course the worse part is it seems there's no way to revive the music. S/Ling and restarting the game doesn't help.
Any ideas/similar problems?