4-String Banjo Chord Chart and Tabs in Gbb Tuning

Ляbm2, Ляbmadd2, Ляbmadd9
Notes: Ля♭, До♭, Ми♭, Си♭
4,3,0,1 (32.1)
4,4,4,8 (1112)
4,8,0,8 (12.3)