Guitar Chord Chart and Tabs in Drop A 7 String Tuning

BbmM13, Bb-M13, Bb minmaj13
Notes: B♭, D♭, F, A, C, E♭, G
10,9,8,8,8,10,8 (3211141)
8,9,10,8,8,10,8 (1231141)
10,8,8,8,8,10,9 (3111142)
8,8,10,8,8,10,9 (1131142)