4-String Banjo Chord Chart and Tabs in Gbb Tuning

Solb, SolbM, SolbΔ, Solb maj, Solb Major
Notes: Sol♭, Si♭, Ré♭
2,3,2,4 (1213)
x,6,7,8 (x123)
2,3,2,x (121x)