2) Check the artists' page to see what # in popularity that song is.
3) Add it all up. The higher you score above 150, the more unique music you listen to. If you score less than 150, you just listen to what's popular.
Bella – Oceans Blue #20
6 Day Riot – Emmanuel #13
Midnight Juggernauts – Road To Recovery #4
Rob Dougan – Clubbed To Death #4
30 Seconds to Mars – The Kill #3
Lolita Ritmanis – Justice League Theme #5
Shirley Walker – Batman: The Animated Series Theme #72
Adam Panic – Buy Me Out #1
Linkin Park – [[My<DSMBR]] #65
Shuntaro Okino – Cloud Age Symphony #1
Total = 188
Well, I like that this does measure whether you just listen to one hit wonders, but I think that some of these artists (Adam Panic) are so obscure that all their songs are tied for #1. Me only scoring one for Adam Panic seems to be counter to the point of this quiz.