The music for any given hour shouldn't take you that long to record; I doubt the music loops are greater than a few minutes. Just change your system clock when you want to skip to a certain hour. All the KK songs might be done using save states (make a save, see what he plays, if you don't like it, restart the save, wait a bit/do some things, then try again).
Failing that, go to YouTube
Failing that, go to YouTube
