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.
FmMaj7 is F, Ab, C and E — Fm with the major seventh added on top.
It sounds tense and wrong-footed. A minor triad carrying a major seventh: the semitone under the root over a minor chord is the first bar of a line cliché.

| F | Ab | C | E |
|---|---|---|---|
| 1 | ♭3 | 5 | 7 |
Minor tonic — the tonic of the melodic minor.
Also written FmM7, Fm(maj7), F-Δ7 or FminMaj7. 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.
FmMaj7 has 6 of them, on strings 6-5-4-3-2-1, strings 6-4-3-2-1, strings 6-4-3-2 and the bottom four strings, from the 4th fret up to the 6th — every inversion the chord has: Ab in the bass and E in the bass. The one to learn first is the E shape at the 5th fret, which is the easiest grip here.
Start with xx3554 — no barre and low, at the 3rd fret. None of the shapes for FmMaj7 uses an open string, so every one of them is movable; the lowest sits at the 1st fret. 2 of the 7 need a barre. Together they cover the neck from the 1st fret to the 15th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| 132111 | 1st fret | F, root position | F | barred |
| xx3554 | 3rd fret | F, root position | Ab | all fretted |
| x8655x | 5th fret | F, root position | E | all fretted |
| x-8-10-9-9-8 | 8th fret | F, root position | C | all fretted |
| x-11-10-10-13-12 | 10th fret | Ab, 1st inversion | E | all fretted |
| x-x-15-13-13-12 | 12th fret | F, root position | E | all fretted |
| 13-15-14-13-13-13 | 13th fret | F, root position | F | barred |
The same notes rebuilt from scratch give 5 shell, 14 drop 2 and 9 drop 3 voicings, each on its own page.
Tensions. A shell of FmMaj7, root, third and seventh, leaves a string free, and the tones that belong over it are the 9 (G), the 11 (Bb) and the 13 (D).
How you get to it. The turn that lands on FmMaj7 is Gm7♭5 to C7♭9: the ii and the V of F minor, which is where a minor tonic is usually arrived at rather than simply begun on.
Every note of FmMaj7 is in F harmonic minor and F melodic minor.
Change one note of FmMaj7 and you have Fm (drop the major seventh), Fmaj7 (the minor third becomes a major third), Fm6 (the major seventh becomes a sixth), Fm7 (the major seventh becomes a flat seventh), FmMaj7b5 (the fifth becomes a flat fifth) or FmMaj9 (add the ninth).
FmMaj7 is a minor chord — root, minor third, fifth. Minor chords on every root.
On FmMaj7’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.