Guitar Chord Chart and Tabs in Drop DB Tuning

AbM11, AbΔ11, Ab maj11
Notes: A♭, C, E♭, G, B♭, D♭
9,7,7,7,9,9 (211134)
7,7,9,7,9,9 (112134)
11,7,7,7,9,7 (311121)
7,7,11,7,9,7 (113121)