The G major ninth Chord for Piano has the notes G B D F# A and interval structure 1 3 5 7 9.Full name: G major ninth Common abbreviations: Gmaj9 G+9 GM9 Gmaj7(9) G+7(9) GM7(9) G+9 GM9 GΔ9 GΔ9 Chord Sound: Chord Structure: Notes G B D (o) F# A ...