4-String Banjo Chord Chart and Tabs in Gbb Tuning

Si#mM7, Si#m#7, Si#-M7, Si#−Δ7, Si#−Δ, Si# minmaj7
Notes: Si♯, Ré♯, Fax, Lax
8,8,8,9 (1112)
8,4,4,5 (3112)