Take your top 20 artists. For each of these artists, collect the top 5 similar artists. The resulting number of unique artists is your eclectic score. If the score is small (extreme = 5) your musical preferences are very limited, and if it is large (larger than 80, extreme = 100), then you have an eclectic musical preference. You can compute your own score at http://anthony.liekens.net/pub/scripts/last.fm/eclectic.php
My eclectic score is currently
86/100
The 86 related artists for my profile are 2Pac,
50 Cent,
AC/DC,
Adrià Puntí,
Aerosmith,
Alaska Y Dinarama,
Ali Farka Touré,
Amaral,
Antonio Vivaldi,
Antònia Font,
Aqua,
Beastie Boys,
Billy Joel (2),
Black Eyed Peas (2),
Black Sabbath,
Bob Dylan,
Bon Jovi,
Brams,
Britney Spears (2),
Bush,
Cesária Évora,
Césaria Évora & Bonga,
D12,
DJ Sammy,
Darude,
Default,
Dr. Dre (2),
Eagles (2),
Eiffel 65,
El Canto Del Loco,
El sueño de Morfeo,
Elton John (2),
Eric Clapton, Eve 6, Foreigner,
…
My eclectic score is currently
86/100
The 86 related artists for my profile are 2Pac,
50 Cent,
AC/DC,
Adrià Puntí,
Aerosmith,
Alaska Y Dinarama,
Ali Farka Touré,
Amaral,
Antonio Vivaldi,
Antònia Font,
Aqua,
Beastie Boys,
Billy Joel (2),
Black Eyed Peas (2),
Black Sabbath,
Bob Dylan,
Bon Jovi,
Brams,
Britney Spears (2),
Bush,
Cesária Évora,
Césaria Évora & Bonga,
D12,
DJ Sammy,
Darude,
Default,
Dr. Dre (2),
Eagles (2),
Eiffel 65,
El Canto Del Loco,
El sueño de Morfeo,
Elton John (2),
Eric Clapton, Eve 6, Foreigner,
…