TAB
|-4----5---|-7----4------------4-----------------|----------------------
|----------|----------5----7--------5--------4---|-5---4----------------
|----------|----------------------------7--------|---------7---3--------
|----------|-------------------------------------|----------------------
1 2
---------------2----4---|-5----2------------2-----------------|---------
-----2------------------|----------4----5--------4--------2---|-3-------
5---------3-------------|----------------------------5--------|---------
------------------------|-------------------------------------|---------
3 4
----------------------------4-----5--|
2-------3----4----5------------------|
----5--------------------------------|
-----------------------3-------------|
Of course there are repeats of this, and I bet you can figure out the ending.