One piece of music I have loved from the first time I heard it is "E5150" by Black Sabbath. It was prominently featured (along with "The Mob Rules") in the final act of the cult-classic animated movie "Heavy Metal", which I saw at a midnight showing at Edmonton's Garneau Theatre when I was in my mid teens and way too young to be watching an R rated movie in the middle of the night with a bunch of rowdy university kids. What does the title mean? E5150 --> E -5-1-50 --> E-V-I-L. Clever, huh? Huh? Huh? Ok, not really. But hearing this always puts me back in the movie theatre, with the Loc-Nar on the brink of destroying the last vestiges of humanity in a post-apocalyptic future.
This is post-Ozzy Black Sabbath, with Ronny James Dio as the vocalist. Some look on it as a lesser brand, I view it as merely different. Sort of like Champagne vs California Sparkling.
-k