7-String Guitar Chord Chart and Tabs in Drop a Tuning

Si7b13, Si7-13
Notes: Si, Ré♯, Fa♯, La, Sol
10,11,9,9,x,10,x (2411x3x)
9,11,10,9,x,10,x (1421x3x)
10,x,9,9,x,10,11 (2x11x34)
9,x,10,9,x,10,11 (1x21x34)