Sorry don't understand the question really?

Is it that you don't know PM - palm mute?

Search for lessons on this at youtube

The other letters Q, S etc at the note lengths - just search for tab explanation on google?

(brief explanation at bottom of the tab)

x for dead note: Muted to the point where it is more percussive sounding than obvious and clear in pitch, so not like a PM where the note is played and muted but where the string is picked with if already muted.

Other than that its practice and listening closely to the original - get some DAW software that will allow you to slow it down.
Last edited by PSimonR at Aug 31, 2014,