Unfortunately, the Last.fm-Mainstream-O-Meter doesn't seem to exist any longer. So I'll take my top 30 artists and compare the new chart positions with the old ones (10,000 tracks played).
The Last.fm-Underground-O-Meter says that I'm 28.9% underground and 6% mainstream (but only using the top ten artists).
AEP is currently 2.84.
1 - Nightwish: 0 up/down2 - Tarja Turunen: 3 up3 - P!nk: 1 down4 - Leaves' Eyes: 1 down5 - Vanessa-Mae: new entry6 - Leningrad Cowboys: new entry7 - Krypteria: 22 up8 - Sonata Arctica: new entry9 - Imperia: new entry10 - Visions of Atlantis: 3 down11 - Hanna Pakarinen: 7 down12 - Katie Melua: 3 down13 - Sarah Brightman: 5 down14 - Tarot: new entry15 - Joss Stone: 9 down16 - Xandria: new entry17 - Tristania: new…