4-String Banjo Chord Chart and Tabs in Gbb Tuning

BbØ, BbØ7, Bbø, Bbø7, Bbm7b5, Bbm7°5, Bb−7b5, Bb−7°5, Bb min7dim5, Bb min7b5
Notes: B♭, D♭, F♭, A♭
6,6,5,6 (2314)