Spellcasting 201 -- Where's the Music Room?

[Davies99999]

I'm playing this adventure game, and according to the documentation, on Tuesday morning I have to be in a Music class that's given in the Music Room. Unfortunately, I think I'm doing something wrong, because I can't find the Music Room. Where is it? (I suspect that I'm going to feel very foolish when I get an answer.)

[Fien]

I don't remember a music room. That's not saying much, though. My memory sucks. I attended only one class, I think.