Get used to the shape of the scale using the finger-per-fret method with 1st finger on fret 9 and so on.
In the riff; Shift wrist down to target 7th when it comes in on A towards the end.
Vital Tip: if you want to play this anywhere near speed you must use your plectrum in tight 2-way cuts.
BLUES SCALE C#
E [--------------------------------------------------------------------
B [--------------------------------------------------------------------
G [--------------------------------------------------------------------
D [---------------------------9---10---11------------------------------
A [-------------9---10---11--------------------------------------------
E [----9---12----------------------------------------------------------
INTRO/CHORUS RIFF (followed by noise)
E [----------------------------------------------------------------------
B [----------------------------------------------------------------------
G [----------------------------------------------------------------------
D [---------11--0---9---0------------------------------------------------
A [-------------------------11--0---10--0---9---0---7---0----------------
E [-9---0---------------------------------------------------7---0---7---9