Yeah X3's music... well I think it's terrible, to be quite honest. I don't think I'm in a minority on this one either.
You probably are! Best Zero theme, and then you've got stuff like this...
...which is just sexy. But hey, it's not too big a deal. You like the Zero games, right? If so, all is forgiven. Also also,
Zero > X > Classic
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http://www.youtube.com/watch?v=SBpfwpOPXNc&NR=1&feature=fvwp
I watch Planet Chasers Starlight Excellent all day, every day.