The root left to the bass player. Frees a finger for a tension.
Fmaj11 is F, A, C, E, G and Bb — Fmaj9 with the eleventh added — the note that fights the major third.
It sounds unsettled, and grittier than the rest of the major family. Most players drop the third or raise the eleventh instead, which is how you arrive at a sus chord or at maj7♯11.

| F | A | C | E | G | Bb |
|---|---|---|---|---|---|
| 1 | 3 | 5 | 7 | 9 | 11 |
Tonic, awkwardly — the eleventh sits a semitone above the third.
Also written FM11, FΔ11 or F major 11. 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.
Fmaj11 has 24 of them, on the middle four strings, the top four strings and strings 5-3-2-1, from open position up to the 13th — every inversion the chord has: A in the bass, C in the bass, E in the bass, G in the bass and Bb in the bass. The one to learn first is the Bb shape at the nut, which is the easiest grip here.
8 of them sit on the middle four strings, 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 xx3355 — no barre and low, at the 3rd fret. None of the shapes for Fmaj11 uses an open string, so every one of them is movable; the lowest sits at the 1st fret. 4 of the 8 need a barre. Together they cover the neck from the 1st fret to the 14th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| 112211 | 1st fret | F, root position | F | barred |
| 112213 | 1st fret | F, root position | G | barred |
| xx3355 | 3rd fret | F, root position | A | all fretted |
| x87966 | 6th fret | F, root position | Bb | all fretted |
| x-8-8-9-10-8 | 8th fret | F, root position | C | barred |
| 13-12-14-0-11-0 | 11th fret | F, root position | Bb | 2 open strings |
| 13-12-x-x-11-12 | 11th fret | F, root position | E | all fretted |
| 13-13-14-14-13-13 | 13th fret | F, root position | F | barred |
The same notes rebuilt from scratch give 6 shell, 13 drop 2, 8 drop 3 and 5 open string voicings, each on its own page.
Tensions. A shell of Fmaj11, root, third and seventh, leaves a string free, and the tones that belong over it are the 13 (D).
How you get to it. The turn that lands on Fmaj11 is Gm7 to C7 — the ii and the V of F — and C7 shares its third and seventh with Gm7, so the hand barely moves between them.
In which keys. Every note of Fmaj11 belongs to D minor (the ♭III) and F major (the I, the tonic).
Every note of Fmaj11 is in F major.
Change one note of Fmaj11 and you have Fmaj9 (drop the fourth), Fmaj13 (the fourth becomes a sixth) or FmMaj11 (the major third becomes a minor third).
Fmaj11 is a major chord — root, major third, fifth. Major chords on every root.
On Fmaj11’s sound and use this page follows Barrie Nettles & Richard Graf, The Chord Scale Theory and Jazz Harmony (Advance Music, 1997). 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.