F major 7th chord on ukulele (Fmaj7)

Why it sounds like that

F major 7th is built from the formula 1, 3, 5, 7, stacking a major 3rd, perfect 5th, and major 7th above F. The major 7th interval E gives the chord its dreamy quality. Compare it to F major, which stops at the triad and sounds more grounded.

What goes wrong with F major 7th?

• Letting the pinky flatten and deaden the 1st string next to it.
• Pressing the index too far back, causing the 2nd string to buzz.
• Strumming before the ring finger is fully set on the 1st string 3rd fret.

When to use it

F major 7th works as the I chord in F major, such as in the I–IV–V–I progression F–B♭–C–F. It also fits the I–V–vi–IV progression F–C–Dm–B♭. Use it in jazz, neo-soul, and soft pop where a warm, unresolved major sound is wanted.

Changing to and from F major 7th

• Sliding the shape up one fret to the 2nd fret gives F♯ major 7th; keep the same finger relationships.
• Move to G major 7th by shifting the whole grip up two frets to the 3rd fret.

Which voicing to use

The default voicing puts E in the bass, creating a first-inversion sound that's lighter and more open. For a root-position F in the bass, use the 5th fret voicing 5-5-5-7. The 5-5-0-0 voicing keeps E in the bass but uses open strings for a brighter, easier grip.