Guitar Chord Chart and Tabs in A Standard 7 String Tuning

Gbm13, Gb-13, Gb min13
Notes: G♭, B♭♭, D♭, F♭, A♭, C♭, E♭
7,7,6,6,6,6,6 (2311111)
6,7,6,6,6,7,6 (1211131)
7,6,6,6,6,6,7 (2111113)
6,6,6,6,6,7,7 (1111123)