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

GmM13, G-M13, G minmaj13
Notes: G, B♭, D, F♯, A, C, E
3,7,5,3,4,3,3 (1431211)
3,3,5,7,4,3,3 (1134211)
3,3,0,0,0,3,7 (12...34)
3,0,0,3,0,3,7 (1..2.34)