Giant Robot vs Guillatine by Buckethead
from Bucketheadland 
transcribed by Ryan Cole

E-------------------------------|-
B-------------------------------|-
G-------------------------------|-
D-------------------------------|-
A-2-2-2-2-2--2-2-(1)--2-2-2-2-2-|-
E-0-0-0-0-0--0-0------0-0-0-0-0-|-

The number in parentheses represents an artificial harmonic.
The E5 chord is palm-muted through this entire passage.

E----|-------------------------------|-
B----|-------------------------------|-
G----|---------------0-10-10p9p7-9---|-
D----|-----------------------------7-|-
A-X-|-7-7-7-7-8-7-7-----------------|-
E-X-|-5-5-5-5-6-5-5-----------------|-

He uses a harmonizer after the power chords, and I think he has it set to produce notes a 
perfect fifth up in addition to the natural notes (I'm only guessing here, I haven't tested).

E-------------------------------|-
B-------------------------------|-
G---------------0-12-10-12p10-9-|-
D-2-2-2-2-5-3-2-----------------|-
A-0-0-0-0-3-1-0-----------------|-
E-------------------------------|-

He uses the harmonizer here too, same as above.