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

SibM7b5, SibMa7b5, Sibj7b5, SibΔ7b5, SibΔb5, Sib maj7b5
Notes: Si♭, Ré, Fa♭, La
0,4,4,7 (.123)
0,9,9,9 (.123)
0,11,9,7 (.321)