Riff A: (once) A-----------00000000----------22222222-- E--00000000----------00000000----------- Riff B: (once) A-----------22222222-00000000----------- E--00000000-------------------00000000-- Riff A: (once) Riff B: (once) Riff C: (once) A--00000000-00000000-------------------- E--------------------00000000-00000000-- Riff D: (once) A--00000000-00000000-22222222-22222222-- E--------------------------------------- Riff A: (once) Riff B: (once) Riff E: (once) A--2222-0000----------- E------------00000000-- Riff F: (once) A--22222222-22222222-00000000-00000000---------------------- E--------------------------------------00000000-00000000-0--