WAIT, my Model M blasts Slayer at every keystroke. Doesn't yours? It also has Metallica's Kill 'Em All pre-loaded in ROM. I heard if you achieve a fast enough rate it'll go straight to Seek & Destroy :).

Seriously though, these keyboards are LOUD. Most of the folks at my office use very loud keyboards, but we don't mind. We all know that we type faster with them, and we all have noise canceling headphones.