Cm          Gm         Cm          Gm         Fm          Gm
|----------------------------------------------------------------------|
|----------------------------------------------------------------------|
|-------------------------------------------------1---1---1------------|
|----1---1---1--------------1---1---1-----------3---3---3--------------|
|--3---3---3---------1----3---3---3---------1----------------------1---|
|--------------3-3-3---3--------------3-3-3---3--------------3-3-3---3-|