... It would have to be a popular tune in order to have that many renditions of it. Something that has been remixed by a few separate people.
I remember seeing in the midi archives for Ocarina of Time that some songs had 3-4 versions of the same song. I think I might've seen more than that for another game... One of the Final Fantasy games, perhaps... If it's an "old school" feeling you want, you could try music from some NES games like Super Mario Bros or Megaman; they would probably have some remixes along with 8-bit-sounding versions of the songs.
As a matter of fact, just now I did a Google search for "Ocarina of Time midi" and the first one that came up, ZeldaCapital.com, had 9 different versions of the Gerudo Valley theme and 9 versions of the Lost Woods theme. (However, I haven't taken the time to listen to them all to make sure they're all different.) Either you could try one of those or check midi archives for other games to see what other tunes are popular.
Edited by Lightwulf, 15 September 2014 - 02:13 PM.