First, start with this.. |---------------------------------------------------------------------| |---------------------------------------------------------------------| |---9----9--7----9--------------9----7--------------------------------| |---9----9--7----9--------------9----7--------------------------------| |---------------------9-~-11------------------------------------------| |---------------------------------------------------------------------| x6 Then this.. |---------------------------------------------------------------------| |---------------------------------------------------------------------| |---------------------------------------------------------------------| |---9----7----5----4--------------------------------------------------| |---7----5----3----2--------------------------------------------------| |---------------------------------------------------------------------|