Charango Chord Chart and Tabs in Ronroco alternative Bolivian Tuning

Sib7b5, SibM7b5, SibM7b5, SibM7b5, Sib dom7dim5
Notes: Si♭, Ré, Fa♭, La♭
x,9,11,8,7 (x3421)
x,9,7,8,11 (x3124)
10,9,11,x,7 (324x1)
10,9,7,x,11 (321x4)