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

Mib7b5, MibM7b5, MibM7b5, MibM7b5, Mib dom7dim5
Notes: Mi♭, Sol, Si♭♭, Re♭
5,4,1,0 (321.)
5,2,1,2 (4213)
5,8,9,0 (123.)
5,4,7,6 (2143)