4-String Banjo Chord Chart and Tabs in Gbb Tuning

Si#+M7, Si#+Δ, Si#M7♯5, Si#M7+5, Si#Δ♯5, Si#Δ+5, Si# augmaj7
Notes: Si♯, Rex, Fax♯, Lax
8,9,9,9 (1234)
8,4,5,6 (4123)