standard Tuning
e----1-----------1--------1-----1--5--3--1--0----0-|
B-1-----1-----1-----1--1-----1----------------3----|
G--------------------------------------------------|
D----------3---------------------------------------|
A--------------------------------------------------|
E--------------------------------------------------|

----1-----------1------1---------------------------|
-1-----1-----1-----1-------3---1-------------------|
-----------------------------------3--2--0---------|
-----------3----------------------------------3----|
---------------------------------------------------|
---------------------------------------------------|