Someone who consistently rates all the songs he/she's listening to in itunes, winamp, or any other device that will let you rate songs. As a result, a music rater often has amazing playlists.
- I was chilling with my boyfriend, listening to some music, and suddenly he got up, saying he had to give that Britney Spears' song 5 stars.
- He is such a song rater!
- Yeah, and with very bad taste. I had to dump him.