e-------------------------------------------|b-------------------------------------------|g-6---6----4---4-------6---6----4---4-------|d-6---6----4---4-------6---6----4---4-------| x4a----------------4-4------------------4/64--|e-------------------------------------------|
e--------------------12*------------------|b-----------------------------------------|g---6-6---4-4-----------------------------|d---6-6---4-4-----------------------------| x1a---4-4---2-2--4/6------------------------|e-----------------------------------------|
