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

Gb+, Gb aug, Gb Augmented
Notes: G♭, B♭, D
x,1,2,3 (x123)
8,5,6,7 (4123)
8,9,10,7 (2341)
8,9,10,11 (1234)
8,9,10,x (123x)
8,5,x,7 (31x2)
8,x,10,7 (2x31)