For this week's edition of Heavy Rotation, I decided to dig around in the attic for some of my old Grunge CDs. For some of you younger readers that may be a bit unfamiliar with what I am talking about, Grunge is generally characterized by a sludgy guitar sound that uses a high level of distortion, fuzz and feedback effects. Grunge fuses elements of hardcore punk and heavy metal, although some bands performed with more emphasis on one or the other. The music shares with punk a raw sound and similar lyrical concerns. However, it also involves much slower tempos, dissonant harmonies, and more complex instrumentation – which is reminiscent of heavy metal.