4-String Banjo Chord Chart and Tabs in Gbb Tuning

SolM7, SolMa7, Solj7, SolΔ7, SolΔ, Sol maj7
Notes: Sol, Si, Ré, Fa♯
3,4,3,4 (1213)
3,4,7,0 (123.)
3,7,0,4 (13.2)