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.
1. Adam Lambert
-Adam Lambert & Allison Iraheta
-Kris Allen
-Allison Iraheta
-Adam Lambert & Kris Allen
-Matt Giraud
-Anoop Desai
-David Cook
-Danny Gokey
2. Owl City
-Swimming With Dolphins
-Lights
-A Rocket To The Moon
-Breathe Carolina
-nevershoutnever!
-The Secret Handshake
-Breathe Electric
-Kill Paradise
3. Hollywood Undead
-brokeNCYDE
-Escape The Fate
-The Blackout
-Senses Fail
-Family Force 5
-I Set My Friends On Fire
-Atreyu
-Dead Celebrity Status
4. CRASHDÏET
-Crazy Lixx
-Vains of Jenna
-Dirty Penny
-Hardcore Superstar
-Pretty Boy Floyd
-Gemini Five
-Babylon Bombs
…
1. Adam Lambert
-Adam Lambert & Allison Iraheta
-Kris Allen
-Allison Iraheta
-Adam Lambert & Kris Allen
-Matt Giraud
-Anoop Desai
-David Cook
-Danny Gokey
2. Owl City
-Swimming With Dolphins
-Lights
-A Rocket To The Moon
-Breathe Carolina
-nevershoutnever!
-The Secret Handshake
-Breathe Electric
-Kill Paradise
3. Hollywood Undead
-brokeNCYDE
-Escape The Fate
-The Blackout
-Senses Fail
-Family Force 5
-I Set My Friends On Fire
-Atreyu
-Dead Celebrity Status
4. CRASHDÏET
-Crazy Lixx
-Vains of Jenna
-Dirty Penny
-Hardcore Superstar
-Pretty Boy Floyd
-Gemini Five
-Babylon Bombs
…
