Banjo Chord Chart and Tabs in Open C Tuning

Bbm2, Bbmadd2, Bbmadd9
Notes: B♭, D♭, F, C
x,10,10,8,6 (x3421)
x,6,10,8,10 (x1324)
10,10,x,8,6 (34x21)
10,6,x,8,10 (31x24)