Logic of organizing:
Order of fingers used: 4,3,2,1
Type 1
Root on string x (x E (6,5,4,3,)) ,
third on string x-1,
fifth on string x-2
Type 2:
Root on string x (x E (6,5,4,3,)) ,
third on string x-1,
fifth on string x-1
Type 3:
Root on string x (x E (6,5,4,3,)) ,
third on string x,
fifth on string x-1
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