7-String Guitar Chord Chart and Tabs in 4th steps chord Tuning

Bb+M7, Bb+Δ, BbM7♯5, BbM7+5, BbΔ♯5, BbΔ+5, Bb augmaj7
Notes: B♭, D, F♯, A
10,10,9,x,x,10,9 (231xx41)
10,x,9,x,11,10,9 (2x1x431)
10,10,x,x,11,10,x (11xx21x)
10,10,9,8,x,x,x (3421xxx)
10,x,9,x,x,10,9 (2x1xx31)
10,x,9,8,7,x,x (4x321xx)
10,10,9,x,x,10,x (231xx4x)
10,6,9,x,7,x,x (413x2xx)
10,10,x,8,11,x,x (23x14xx)
10,x,9,x,7,10,x (3x2x14x)
10,x,9,8,x,x,9 (4x21xx3)
10,x,x,x,11,10,9 (2xxx431)
10,6,9,x,x,x,9 (412xxx3)
10,x,x,8,11,x,9 (3xx14x2)