tune all strings down half step (Eb Ab Db Gb Bb eb)
key of D
e|-------------8--10--6--------8-6------------6-4-3-1--------------------|
b|--8--9-8-11-9-11-----9p8p6h8-----8p6h8--4-6---------4------------------|
g|-8-10------------------------------------------------------------------|
D|-----------------------------------------------------------------------|
A|-----------------------------------------------------------------------|
E|-----------------------------------------------------------------------|