4-String Banjo Chord Chart and Tabs in Whole Step Down Tuning

SolmM7, Solm#7, Sol-M7, Sol−Δ7, Sol−Δ, Sol minmaj7
Notes: Sol, Si♭, Ré, Fa♯
9,9,10,11 (1123)
9,5,6,7 (4123)