I think it is possible to swap out the pwi music files with your own but I have never tried this. Mainly due to it being much easier to just set a playlist on my own media player.
I would be trying to do different bands and genres every week.Youre into punk rock but this week is rap?Wait till next week
sounds nice and it's easy to do too, but waste of time when you can simply and VERY easily just play whatever music you feel like on your own music player, with a much wider control over the music... :S Just don't see the point in this .. too many players with all having a different taste in music and what not soo you won't be able to please most of the players..why would one wait, when they can just play punk rock non stop on iTunes or something o.o it's kinda pointless i think for the amount of work that's required. It's not a bad idea.. just not worth it when there are better alternatives :S .
PWI installed music sucks.
You don't want to exasperate GN Sleep