An open string left ringing against a fretted grip. Because it costs no finger, it sounds a note the closed shape has none left for -- a tension on top, or a pedal root underneath. Either a familiar grip with open strings added, or a shape so sparse the open strings carry the chord. These belong to their key rather than to a shape, so D, A, G and E have many and Eb a handful.
G69 is G, B, D, E and A — G6 with the ninth added as well.
It sounds wide and entirely at rest. The modern way to voice a tonic when a triad is too bare and a maj7 too pointed.

| G | B | D | E | A |
|---|---|---|---|---|
| 1 | 3 | 5 | 6 | 9 |
Tonic — it commits to nothing.
Also written G6/9, G6add9 or G six nine. The same chord either way; which spelling you meet depends on who wrote the chart.
An open string left ringing against a fretted grip. It costs no finger, so it can sound a note the closed shape has none left for: a tension on top, or a pedal root underneath.
These belong to their key rather than to a shape: they cannot be moved up the neck. D, A, G and E have many; E♭ has a handful.
G69 has 6 of them, on strings 5-4-3-2-1, strings 6-5-4-3-2-1, strings 6-4-3-2-1 and strings 6-5-4-3-2, from the 2nd fret up to the 6th — every inversion the chord has: G in the bass, B in the bass, E in the bass and A in the bass. The one to learn first is the E shape at the 4th fret, which is the easiest grip here.
Start with 300000 — no barre and 5 open strings. 1 of the 9 shapes here sits in open position. 7 of the 9 need a barre. Together they cover the neck from the 2nd fret to the 15th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| 300000 | open position | G, root position | E | 5 open strings |
| 322233 | 2nd fret | G, root position | G | barred |
| xx5455 | 4th fret | G, root position | A | barred |
| x55455 | 4th fret | D, 2nd inversion | A | barred |
| x77787 | 7th fret | E, 6th in the bass | B | barred |
| x-10-7-9-8-7 | 7th fret | G, root position | B | all fretted |
| x-10-9-9-10-10 | 9th fret | G, root position | D | barred |
| x-12-12-12-12-12 | 12th fret | A, 9th in the bass | E | barred |
| 15-14-14-14-15-15 | 14th fret | G, root position | G | barred |
The same notes rebuilt from scratch give 4 shell, 15 drop 2, 10 drop 3 and 15 rootless voicings, each on its own page.
Tensions. A shell of G69, root, third and seventh, leaves a string free, and the tones that belong over it are the #11 (C#).
How you get to it. The turn that lands on G69 is Am7 to D7 — the ii and the V of G — and D7 shares its third and seventh with Am7, so the hand barely moves between them.
In which keys. Every note of G69 belongs to C major (the V), D major (the IV), E minor (the ♭III), G major (the I), A minor (the ♭VII) and B minor (the ♭VI).
G69 is every note of the G major pentatonic, and nothing else. It also sits inside G major, G lydian, G mixolydian and G lydian dominant.
Change one note of G69 and you have Gmaj9 (the sixth becomes a major seventh), Gmaj13 (add the major seventh), Gm69 (the major third becomes a minor third), Gadd9 (drop the sixth), G6 (drop the ninth) or G9 (the sixth becomes a flat seventh).
G69 is a major chord — root, major third, fifth. Major chords on every root.
On G69’s sound and use this page follows Mark Levine, The Jazz Piano Book (Sher Music, 1989). 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.