The root left to the bass player. Frees a finger for a tension.
GmMaj9 is G, Bb, D, F# and A — GmMaj7 with the ninth added on top.
It sounds the same unease with more colour over it. The ninth softens the edge without resolving anything.

| G | Bb | D | F# | A |
|---|---|---|---|---|
| 1 | ♭3 | 5 | 7 | 9 |
Minor tonic — melodic minor, extended.
Also written GmM9, Gm(maj9) or G-Δ9. The same chord either way; which spelling you meet depends on who wrote the chart.
Leave the root to the bass player. In a band nobody misses it, and the ear supplies it from the guide tones anyway.
The finger it frees goes to a tension, which is why these sound richer than the shape they came from rather than thinner.
GmMaj9 has 13 of them, on the top four strings, the middle four strings and strings 5-3-2-1, from open position up to the 13th — every inversion the chord has: Bb in the bass, D in the bass, F# in the bass and A in the bass. The one to learn first is the F# shape at the 3rd fret, which is the easiest grip here.
5 of them sit on strings 5-3-2-1, so you can run the inversions up one set without changing strings — which is the whole reason to learn them as a family rather than as separate grips.
Start with 3142xx — no barre and down at the nut. 1 of the 8 shapes here sits in open position. 4 of the 8 need a barre. Together they cover the neck from the 1st fret to the 13th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| 300332 | open position | G, root position | F# | barred |
| 31x232 | 1st fret | G, root position | F# | all fretted |
| 3142xx | 1st fret | G, root position | A | all fretted |
| 354335 | 3rd fret | G, root position | A | barred |
| 555776 | 5th fret | A, 9th in the bass | Bb | barred |
| xx7076 | 6th fret | A, 9th in the bass | Bb | 1 open string |
| x-10-8-11-10-x | 8th fret | G, root position | A | all fretted |
| 10-13-12-11-10-10 | 10th fret | D, 2nd inversion | D | barred |
The same notes rebuilt from scratch give 3 shell, 5 drop 2, 4 drop 3 and 2 open string voicings, each on its own page.
Tensions. A shell of GmMaj9, root, third and seventh, leaves a string free, and the tones that belong over it are the 11 (C) and the 13 (E).
How you get to it. The turn that lands on GmMaj9 is Am7♭5 to D7♭9: the ii and the V of G minor, which is where a minor tonic is usually arrived at rather than simply begun on.
Every note of GmMaj9 is in G harmonic minor and G melodic minor.
Change one note of GmMaj9 and you have Gmaj9 (the minor third becomes a major third), Gm69 (the major seventh becomes a sixth), Gm9 (the major seventh becomes a flat seventh), GmMaj7 (drop the ninth), GmMaj11 (add the fourth) or Gmadd9 (drop the major seventh).
GmMaj9 is a minor chord — root, minor third, fifth. Minor chords on every root.
On GmMaj9’s sound and use this page follows Mark Levine, The Jazz Theory Book (Sher Music, 1995). The shapes and the derived voicings come from different places, and both are explained in where the chords and the theory come from.
Shows each chord the way this style would voice it, and marks which of its alternatives belong to the idiom.