Ukulele Chord Chart and Tabs in Half-step down Tuning

GbM7b5, GbMa7b5, Gbj7b5, GbΔ7b5, GbΔb5, Gb maj7b5
Notes: G♭, B♭, D♭♭, F
6,7,7,9 (1234)
0,11,9,9 (.312)