Difficulty levels...
	Songs...

Complete a difficulty with an "S" rank to unlock the next harder difficulty level.

Reach the indicated fame level to unlock the corresponding song.

Song	Fame level
"1812 Overture", by Tchaikovsky	Fame level 2.
"Bwv 1068:II, Air on a G String" by Bach	Fame level 3.
"Espana" by E. Chabrier	Fame level 4.
"Night on Bare Mountain", by Modest Mussorgsky	Fame level 5.
"Symphony No. 5", by Beethoven	Fame level 1.