Bass Chord Chart and Tabs in C Standard Tuning

Gbmsus2, Gb-sus, Gbminsus
Notes: G♭, A♭, B♭♭
6,4,7,4 (2131)
6,3,7,5 (3142)
6,4,x,4 (21x1)
6,3,x,5 (31x2)
6,x,9,5 (2x31)