7-String Guitar Chord Chart and Tabs in b standard Tuning

SibmM13, Sib-M13, Sib minmaj13
Notes: Si♭, Ré♭, Fa, La, Do, Mi♭, Sol
10,9,8,8,9,8,8 (4211311)
8,9,8,8,9,10,8 (1211341)
10,8,8,8,9,8,9 (4111213)
8,8,8,8,9,10,9 (1111243)