Johann Sebastian Bach - The Well-Tempered Clavier, аккорды

This is a little riff in (I believe) the second prelude of Bach`s The Well-
 Tempered Clavier.  It`s worthy of gods with truckloads of distortion.  If
 I can remember correctly, it`s in 
C
 or 
C#
 minor.
 
 
 --------------------------------
 --------------------------------
 -----------------4---7-4--------
 -------3-6-3---3---3-----6-3---3
 -----5-------7---------------7--
 -3-7----------------------------
  1 4 2 1 3 1 4 1 2 1 4 1 3 1 4 1