7-String Guitar Chord Chart and Tabs in Bass Viol Tuning

GM13, GΔ13, G maj13
Notes: G, B, D, F♯, A, C, E
10,9,11,0,0,0,0 (213....)
10,10,11,11,0,0,0 (1234...)
10,10,9,9,10,9,9 (2311411)
10,9,9,9,10,9,10 (2111314)