d u d d u d d ... u u d u u alternative sweep fingers: 1 4 1 2 3 2 1 4 1 2 3 2 1 4 1 2 3 2 1 3 2 1 3 2 1 1 2 3 1 2 4 4 2 1 4 2 1 1 2 3 1 2 4 4 Maybe ( 3 1 1 2 3 2 1 1 3 2 2 3 2 1 3 2 1 2 4 th 2 1 3 2 1 4 th 2 1 3 3 1 1 1 4 1 3 1 4 2 4 1 4 3 1 3 4 1 3 1 4 3 2 3 2 1 3 4 th 3 1 1 1 4 1 3 1 4 2 4 1 4 3 1 3 4 1 3 1 4 3 2 3 2 1 3 4 Maybe