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

SolbM7b5, SolbMa7b5, Solbj7b5, SolbΔ7b5, SolbΔb5, Solb maj7b5
Notes: Sol♭, Si♭, Ré♭♭, Fa
8,5,5,5 (2111)
8,7,10,10 (2134)