How do you break up your rock genres? I have about 65+ GB of music, and most of it falls into the broad rock genre. I use the rock genre for bands like AC/DC, Led Zeppelin, The Who, etc. I use the hard rock sub-genre for any type of harder rock, from Black Sabbath, Pantera, Nile, Fear Factory, Opeth, Slayer, Machine Head, etc... If you have a pretty decent amount of rock music, how do you break up the sub-genres? I want to separate the different styles, but not have a different sub-genre for each band.