Wonderful concerto!
Filling in some of Black-Mage-Nuke's missing tracks...
Track #1: ???
**Track #2: Congratulations!, Adventure Island II.
Track #3: Town Theme, Final Fantasy
Track #4: Matoya's Cave, Final Fantasy
Track #5: Town Theme, Zelda II: The Adventure of Link
Track #6: ???
**Track #7: Earth, A Boy and His Blob (confirming LightRiku's guess)
Track #8: Intro Theme, Duck Hunt
Track #9: Outdoor Theme, Super Mario Bros. 2
**Track #10: Castle Theme, Super Mario Bros., or EXTREMELY close to it.
Track #11: Tourian, Metroid
Track #12: One of the various level themes, Lemmings