g------------------------------
d------------------------------
a-10-10-10-5-5-5-3-3-3-8-8-8---
e---------------------------8\-

g----------------------
d----------------------
a-8-9-10-5-3-8-5-8-9-10 ...
e----------------------

g----------------------------
d--------12-12-12-12---------
a-8-9-10-------------5-3-8-5-
e----------------------------

g------
d------
a--12\- ...
e------