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

SibmM7, Sibm#7, Sib-M7, Sib−Δ7, Sib−Δ, Sib minmaj7
Notes: Si♭, Ré♭, Fa, La
0,0,1,2 (..12)
0,4,5,6 (.123)
0,0,9,6 (..21)
0,8,9,10 (.123)