RIFF A:
E |------------------|
B |------------------|
F#|------------------|
B |1-0"-78-57-0"-58-3|

" = tremelo

RIFF B:
E |--------------|
B |--------------|
F#|--------------|
B |11-0-87-110-87|
      
x2 (then pause at 00:14)
(start at 00:16) x4

RIFF Ca:
E |--------------------|
B |--------------------|
F#|--------------------|
B |11-022(2)-11-8777(0)|
   x4
(these are 1's and 2's. not 11's and 22's.)

RIFF Cb:
E |----------------|
B |----------------|
F#|-----7"-------7"|
B |3-6-2----3-6-2--|
     x2

RIFF Ca: x4

RIFF Cb: x2

RIFF B: x6