e-3-4-5--1----3-4-5--5-3-1-3-5-10-8--- b----------3-------------------------- G------------------------------------- D------------------------------------- A------------------------------------- E------------------------------------- e-12-13-12-10-9-10--6-5-15-----15-18-20-18-17-15-18-17-- b----------------------------15------------------------- G--------------------------15--------------------------- D------------------------------------------------------- A------------------------------------------------------- E------------------------------------------------------- e-10------10-15-----15-18-20-18-17-15-18-17-- b------10---------15---------------------17-- G----10---------15--------------------------- D--------------------------------------------- A--------------------------------------------- E---------------------------------------------