Dropped D tuning
Scratch Intro: The Randy is playing a Deftones kind of scratching
on the strings. Here's the best way I can describe it.
He plays it like this:
Randy is still letting the lower strings ring, and hitting the low D
every so often and letting it ring. He is like picking with the side of
his pick up the neck where the bottom of the fret board is. And when he
hits the strings right the ring the D note along with a pitch harmonic.
Whole thing: 2x, except don't play the variation the last time.
Bridge to Scratch Intro:
Scratch down the lower strings