4-String Banjo Chord Chart and Tabs in Gbb Tuning

SiM7b5, SiMa7b5, Sij7b5, SiΔ7b5, SiΔb5, Si maj7b5
Notes: Si, Re♯, Fa, La♯
7,3,4,3 (3121)
7,8,6,8 (2314)
11,10,0,8 (32.1)