Guitar Chord Chart and Tabs in Double Drop D Tuning

BbmM11, Bb-M11, Bb minmaj11
Notes: B♭, D♭, F, A, C, E♭
8,6,10,6,6,7 (314112)
8,6,7,6,6,10 (312114)
8,8,11,8,10,10 (114123)
8,8,10,8,10,11 (112134)