F6

F Major 6th — a major triad sweetened with the sixth — settled, vintage, and smoother than a maj7 in many endings.

The keys
C4C5C6
F – A – C – D
What's inside F6
NoteInterval from rootDegree
FRoot1
AMajor 3rd3
CPerfect 5th5
DMajor 6th6
Inversions
PositionKeys (low → high)
Root positionF4 – A4 – C5 – D5
1st inversionA4 – C5 – D5 – F5
2nd inversionC5 – D5 – F5 – A5
3rd inversionD5 – F5 – A5 – C6
A working voicing

Split the chord between two hands the way working players do — a solid shell low down, the colour tones up top:

HandKeys
Left (shell)F2 – C3
Right (colour)A4 – D5
Where F6 lives

As the I chord

F6 → B♭ → C → F6

The classic I–IV–V–I motion with this chord as home.

In a ii–V–I

Gm7 → C7 → F6

The strongest cadence in harmony, resolving onto this chord.

Put F6 under your fingers

Hear every voicing, see the keys light up, and drill it in the interactive Chord & Voicing Lab.

Open the Chord & Voicing Lab →
Major 6th in every key
C6 C♯6 D6 E♭6 E6 F♯6 G6 A♭6 A6 B♭6 B6