riff 1
------------------------------------------------------
------------------------------------------------------
------------------------------------------------------
-0000000-3333-1111-1-1-1---333-3--6-6-7-3333-3--3-5---

riff 2
-----------------------------
-0--444-3---3---222----------
-----------------------------
--------------------00010001- 2X

riff 3
----------------
----------------
----------------
-22-----0000000- 5X

riff 4
---------------------------------------------
---------------------------------------------
-77--55--33--1100-77--55--44--333-222-000000-
---------------------------------------------