Guitar Chord Chart and Tabs in Drop C# Fourths Tuning

Bb7b13, Bb7-13
Notes: B♭, D, F, A♭, G♭
9,10,9,11,9,10 (121413)
x,10,9,11,9,10 (x21413)
9,10,x,11,9,10 (12x413)