Books, books, and even more books. Shelves and shelves of them. Anything you look for, can be found here, if not in the regular library, deeper down in the restricted area.
You can come here to just sit and study too, if it's getting a bit too loud in your common room.
The library is a huge room, with ladders to reach all the books and little tables and sofa's scattered around the place.

Ah, music! How beautiful it can be, and how it can enlighten the hearts of those who are listening.
Welcome in Hogwarts' choir room.
Here, you can find all types of (muggle) instruments, along with lots of music sheets.
And now, let the show begin!