7-String Guitar Chord Chart and Tabs in fake 8 string Tuning

LabM13, LabΔ13, Lab maj13
Notes: La♭, Do, Mi♭, Sol, Si♭, Ré♭, Fa
4,4,3,3,3,3,4 (2311114)
4,3,3,4,3,3,4 (2113114)