You open up the notebook to the very first page. Inside it has various letters inside boxes formatted in rows...they seem to be notes on the piano, with dots mixed in, possibly because of the tempo. There are names above the letter-filled boxes, labeling what seems to be song melodies.

Care to view some?
Homestar Intro
(Stinkoman Theme)?
(Super Mario Bros. theme)?
(The Legend of Zelda Theme)?
(Metroid: Brinstar?)?
(Strong Bad is in Jail Cartoon Intro)?

At the top of the scribbled page you can see some key icons:

. . . . . . . . = Tempo

. . . . . # # # = Keys following tempo

. . #-#-#(4) = Consecutive Keys in one beat

. .#. . . . . . = 16 Beat Note