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.
Emaj9 is E, G#, B, D# and F# — Emaj7 with the ninth stacked above it.
It sounds a maj7 with more air in it. The ninth argues with nothing here, so it works anywhere a maj7 does.

| E | G# | B | D# | F# |
|---|---|---|---|---|
| 1 | 3 | 5 | 7 | 9 |
Tonic — an extended resting chord.
Also written EM9, EΔ9, Ema9 or E major 9. 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.
Emaj9 has 3 of them, on strings 6-4-3-2-1, strings 6-5-4-3-2 and strings 5-4-3-2-1, all of them at the 4th fret — every inversion the chord has: E in the bass and D# in the bass. The one to learn first is the E shape at the 4th fret.
Start with 021102 — no barre and 2 open strings. 1 of the 12 shapes here sits in open position. 6 of the 12 need a barre. Together they cover the neck from the 1st fret to the 14th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| 021102 | open position | E, root position | F# | 2 open strings |
| xx2142 | 1st fret | E, root position | F# | all fretted |
| 422442 | 2nd fret | G#, 1st inversion | F# | barred |
| x74444 | 4th fret | E, root position | G# | barred |
| x7687x | 6th fret | E, root position | F# | all fretted |
| 77687x | 6th fret | B, 2nd inversion | F# | barred |
| x-9-9-9-9-11 | 9th fret | F#, 9th in the bass | D# | barred |
| x-x-9-11-9-11 | 9th fret | B, 2nd inversion | D# | all fretted |
| 12-9-9-9-9-11 | 9th fret | E, root position | D# | barred |
| 12-11-13-11-12-11 | 11th fret | E, root position | D# | barred |
| 12-14-13-13-12-14 | 12th fret | E, root position | F# | all fretted |
| x-x-13-13-12-14 | 12th fret | D#, 3rd inversion | F# | all fretted |
The same notes rebuilt from scratch give 4 shell, 11 drop 2, 7 drop 3 and 13 rootless voicings, each on its own page.
Tensions. A shell of Emaj9, root, third and seventh, leaves a string free, and the tones that belong over it are the #11 (A#) and the 13 (C#).
How you get to it. The turn that lands on Emaj9 is F#m7 to B7 — the ii and the V of E — and B7 shares its third and seventh with F#m7, so the hand barely moves between them.
In which keys. Every note of Emaj9 belongs to C# minor (the ♭III), E major (the I, the tonic), Ab minor (the ♭VI) and B major (the IV, the subdominant).
Every note of Emaj9 is in E major and E lydian.
Change one note of Emaj9 and you have Emaj7 (drop the ninth), Emaj11 (add the fourth), Emaj13 (add the sixth), EmMaj9 (the major third becomes a minor third), Eadd9 (drop the major seventh) or E69 (the major seventh becomes a sixth).
Emaj9 is a major chord — root, major third, fifth. Major chords on every root.
On Emaj9’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.