I remember Audiogalaxy, but cannot remember if it was before, after or basically concurrent with Napster..? Guess couldn’t have been before because Napster was the first right?
Almost the same time, Napster was slightly earlier, at least in adoption for me and my friends. Audiogalaxy was better but didn't catch on as much, that's when things really started fracturing.
I used napster in junior college and audiogalaxy at my 4-year, so at least for me, Napster was first, but there was some time when both were around and usable.