Well that is complete BS. The SNES version of the soundtrack sucked ass.
The CPS1 version had actual music samples while the SNES one had weird midi-like sampling and it sounded like they got a mariachi band to do the tune. I liked the game, but hated the music.
Super Street Fighter II's music was kinda improved but it was still kinda iffy. I never was a fan of whoever did the music conversions for Capcom in that era.