There are 7 songs. Theye are 2 measures long each. They are poorly made.

Answers:

[details=Click to expand]Song 1 - Bad Apple (guessed by Skyriad)
Song 2 - Little Einsteins theme (guessed by c_diggity)
Song 3 - Gourmet Race (guessed by craykiller233)
Song 4 - Through the fire and flames by dragonForce (guessed by fischertechnic)
Song 5 - U.N. Owen was her? (guessed by qoby)
Song 6 - Zelda’s lullaby (guessed by craykiller223)
Song 7 - Never gonna give you up by Rick Astley (guessed by Fischertechnic)[/details]