Every Saturn exclusive game had an insane soundtrack, and the same seemed to be for PC engine/ TG 16 CD games as well. Seems like there was just something about CD game soundtracks back then.
Seriously. Those three systems and their games delivered some awesome audio.
The music in NiGHTS into Dreams is fantastic. The catchy melodies in this game really drive the feeling of sailing through the sky with grace and determination. Paternal Horn is one of many great NiGHTS songs.
Sega Rally is up there with NiGHTS. This soundtrack is just plain cool. It has hot-blooded rock ready to pumped you up for a good race, and some absolutely smooth melodies to cool you down after one. Mountain Replay makes me think of a nice cruise along a coastline.
Battle Garegga (Detroit techno in a shmup??? too bad the game costs an arm and a leg!) Panzer Dragoon Saga, Astal, Radiant Silvergun, NiGHTS, and of course Daytona