I absolutely love heavy metal, and generally live by the rule 'the heavier the better'. However, number 11 was way too much. Most of the stuff I listen to is Metallica/ Iron Maiden range (call it 7/8) and I love Led Zeppelin, the Rolling Stones and the Beatles but I also like bands such as Children of Bodom and Slipknot. So I guess I do average at 7.5, but there is a very large range to choose from to satisfy my tastes.