Drop D tuning is where you tune the 6E string one step down to the key of D. Instead of tuning your guitar using the "A" note octave on the 6th, move one whole step towards the 12th fret and tune away. If your ears are good you can learn to strum the 5th and 6th string in an open chord and tune it down, you can acually do it fast enough to change tunings during a song. Palm muting is a great technique. Just place your hand on your bridge and strings. The more pressure you apply the more "Chunk" you get. You can also use this technique to clean your progressions on the higher strings up. Just mute the lower strings, and leave the high strings alone. Metallica's "Master of Puppets" and "Enter Sandman" are great practice for palm muting. And please don't play Marylyn Manson.

Diamond Dimebag Darrel Abbot will live forever!