First, make a list of your top-20 artists overall. Then, for each of these artists, add the 8 most similar artists to your list. Delete any duplicates, count up the number of entries on your list and this will give you some idea of how eclectic your listening habits are. A score of 9 represents an extremely unvaried musical taste while a 160 represents an extremely varied one.
130! :D
浜崎あゆみ
The Kooks
BoA
Twelve Girls Band
Shakira
宇多田ヒカル
Eels
孫燕姿
Maureen Hunter & Niaz McGuire
Utada
安室奈美恵
Regina Spektor
Sabrepulse
the brilliant green
蔡依林
Amy Macdonald
Juanes
Fiddlers' Bid…