Music paper

The Music Papers can be found in the Springfield Elementary School near Megaton. They are found in the room with the students' desks immediately to the right when you enter the school on the upturned regular desk. Make sure you look as it's not immediately in view.

There is also a copy in Vault 92, in the Living Quarters. It is in the bathroom of the men's quarters.

Another book can be found on the roof of the Statesman Hotel, in the corner.