4-String Banjo Chord Chart and Tabs in Gbb Tuning

SibM7b5, SibMa7b5, Sibj7b5, SibΔ7b5, SibΔb5, Sib maj7b5
Notes: Si♭, Ré, Fa♭, La
6,2,5,0 (312.)
6,2,3,2 (3121)
6,7,5,7 (2314)
6,9,10,0 (123.)