I have it too, and I love it. Some of the sheet music (I'll never tell, for example) is quite difficult if you never learned piano properly. There's always the vocal part and block chords though if you want a simple version of each song. The script is, as usual, excellent, and I liked the extra stuff from Joss and the rest. I definately think it's worth it, even if it is just for the music. When played properly, they sound great.