4-String Banjo Chord Chart and Tabs in Whole Step Down Tuning

Solb+M7, Solb+Δ, SolbM7♯5, SolbM7+5, SolbΔ♯5, SolbΔ+5, Solb augmaj7
Notes: Sol♭, Si♭, Ré, Fa
8,5,5,7 (3112)
8,9,10,10 (1234)