4-String Banjo Chord Chart and Tabs in Plectrum Tuning

AbM7b5, AbMa7b5, Abj7b5, AbΔ7b5, AbΔb5, Ab maj7b5
Notes: A♭, C, E♭♭, G
8,5,8,0 (213.)
8,7,8,10 (2134)