Maybe you dont agree. Yet I believe SC1's music is much more memorable than SC2's music which lacks the synthetic-techno-retro vibe of the 90s.
Especially in the case of terrans, this synthetic-techno-retro vibe, combined with rock instruments, just make you pumped like hell for intergalactic warfare.
Instead, in SC2, we get a lousy, boring, ''hey it's space far-west'' style of music. Sorry, not my cup of tea.
Zerg music in SC2 dont inspire terror at all, compared to the quite terrifying music the Zerg had in SC1.
Protoss music is like, uh, what? It isnt as mystical and doesnt inspire the same ''eternal wisdom'' the SC1 Protoss music conveyed. The only redeeming factor in it is a small portion in which some of the SC1 Protoss music is being played.
In the end, I just cant relate, identify or memorize any of the soundtracks in SC2.
SC1's musics are so anchored in my head I could recognize them anytime or even play them in my head. These musics CONVEY the feeling of your race. They bolster you to battle your enemies and accompany you through combat in their full might.
SC2's musics, in comparison, are in the ''background''. They're just there, but never with you, in battle, in combat. Just little, forgettable, tunes...
What do you people think? :S