I remember the days of the Commodore Amiga and even the Sinclair Spectrum. I dont remember any later PC game music nearly as much as those old Amiga tracks or even the primitive beeps of the spectrum, maybe because i was so young and suggestible.
Particularly i remember soundtracks of games such as Apidya, Leander, Shadow of the Beast, Turrican or Jaguar XJ220 for the Amiga. Of course as everybody who lived those years also remember the music of the Out Run arcade game. Ahhh those were the days...
Going even further backwards near the age when my memories begin i barely remember the "music" of some Spectrum games as Quazatron or Manic Miner...