FACT: The music that I like is awesome.
HYPOTHESIS: Music that is similar to the awesome music that I like will be awesome.
Pandora.com is helping prove my theory. Pandora is an online radio station that uses something called the music genome project to carefully select music that it thinks that you'll like. You start by typing in the name of an artist that you like. Then, based upon your awesome tastes, it creates your own radio station. As new songs come up, you give them the thumbs up or thumbs down. It keeps customizing your station.
I guess the theory is, that after a while, it creates your perfect radio station.
RESULT: New music that is like my music (that is awesome) is, in fact, also awesome.