semicord

F6 F major sixth chord

Notes
F A C D
Formula
1 3 5 6
Semitones
0 4 7 9 above the root
Other symbols
FM6, Fmaj6

F to A is a major third (4 semitones), A to C is a minor third (3 semitones), C to D is a major second (2 semitones). A major triad plus the major sixth, D, nine semitones above F. With D in the bass the same four keys read as Dm7: which name fits depends on the bass note.

F6 on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C#4Eb4F#4Ab4Bb4C#5Eb5F#5Ab5Bb5C4FACC5D

Root position from F4: F4, A4, C5, D5. Middle C is C4.

F6 on the guitar

Standard tuning (E A D G B E). Strings run low E on the left to high e on the right, frets downwards; × is a muted string, ○ an open string, and each dot shows the note it sounds, with the root in blue-green. Every shape below has F as its lowest note.

FF×DAACC×
E-shape, root on the E string at fret 1
1 x 0 2 1 x (low E to high e)
Sounds F2 D3 A3 C4
8fr×FFCCFFAADD
A-shape, root on the A string at fret 8
x 8 10 10 10 10 (low E to high e)
Sounds F3 C4 F4 A4 D5

The E-shape and A-shape grips are movable: an E-shape chord's root is the note under your first finger on the low E string, an A-shape chord's root is the note on the A string. Slide the same grip up or down to play major sixth chords on other roots.

Inversions of F6

An inversion puts a note other than the root in the bass. The name is what semicord's chord finder calls those notes played bottom to top; a slash name like C/E means a C chord with E in the bass.

PositionNotes, bass firstNamedListen
Root positionF A C DF6
1st inversionA C D FDm7/A (also read as F6/A)
2nd inversionC D F ADm7/C (also read as F6/C)
3rd inversionD F A CDm7 (also read as F6/D)

Where F6 fits

F6 is I6 in F major, IV6 in C major. As a final tonic chord it is the swing-era and early rock and roll alternative to Fmaj7: the sixth, D, adds colour without the half-step rub between F and a major seventh.