There's also some games/soundtracks which tend to not be brought up since not many people played them:
Blue Dragon (Xbox 360)
Bravely Default (Nintendo 3DS)
Estpolis Denki II (Super Famicom)
Final Fantasy XI (PlayStation 2/Windows/Xbox 360)
Gensou Suikoden II (PlayStation)
Lost Oddyssey (Xbox 360)
Wild Arms (PlayStation/PlayStation 2, both the original and the PS2 remake, though they have some notable differences in their OSTs)
And you people here forgot these too:
Castlevania Symphony of the Night (PlayStation)
Tales of Phantasia (Super Famicom/PlayStation)
PS: Yeah, mostly japanese RPGs.