lso, that 1-minute track sounds great, but it's just as useful as an static image of a scanned photo. The real fact is that the SNES could never have something as good as this in a real game: http://www.youtube.com/watch?v=jLvG-Al6tOg :P
Woah, woah, woah... Are you comparing Antonio Vivaldi to upbeat video-game techno?... The very thought of such sacrilege...
I don't know enough about the specs to make an honest comparison, but every time my friends introduce me to good Genesis games (I was always a SNES player as kid) something about the graphics and sound always makes me cower in my chair like a vampire's just walked into the room.
Like recently he turned on Warsong and I got this:
http://www.youtube.com/watch?v=2m6pbTP5M7A
Awesome awesome game, but the sound effects really just... No, that's not fair, I loved the sound effects. It's just that I loved them because they sounded like something out of one of those button-operated digital noise maker pads kids had in the late 80's, early 90's. To much clunky explosions and violent noise to be "camp" but just as entertaining.
Phantasy Star VI was something else... I mean, the sound was good, but it's just so much sharper, and rumbly, and digital sounding than what I'd expect from the SNES. In comparison, everything on the SNES sounds so light, and smooth and balanced... And I know I'm using very sophisticated music theory terms here (sarcasm) so I'll just give what I think are two representative samples:
Phantasy Star IV:
http://www.youtube.com/watch?v=HR_dtc3xL_c
Secret of Mana:
http://www.youtube.com/watch?v=iEu98t_8HbY
I'll reiterate what other people have said in that there's simply no comparing the sound capabilities of either system. Maybe it all depends on whether a person prefers Antonio Vivaldi or techno.
PS. I loved what little music I heard from the Sega Master System:
http://www.youtube.com/watch?v=Rn4Ie8WL7sE
The Japanese sound was supposedly better, but I kind of hate it comparison.