F7 Chord on Ukulele
F7 = F – A – C – D# (Root, Major 3rd, Perfect 5th, Minor 7th)
F7 keeps two strings completely open and needs only two fretted notes to complete the chord: the G string rings open for the fifth and the A string rings open for the third, while the E string's first fret adds the root and the C string's third fret brings in the flatted seventh. Two open strings out of four is a rare ratio for a seventh chord on this instrument, and it makes F7 noticeably easier than its plain major triad cousin, F, which needs two fingers spread across a wider stretch.
As a dominant seventh, F7 wants to resolve, its flatted seventh and third forming the tritone that pulls strongly toward Bb major — F7-to-Bb is the V7-I cadence in that key, common in ukulele repertoire that ventures slightly further from the home keys of C and G. It also functions as the IV7 chord borrowed into a C-major progression for a brief bluesy or bossa-nova-tinged color, a device that shows up in more harmonically adventurous folk and jazz-leaning arrangements. Because two of its four notes ring open, F7 keeps a genuinely resonant, un-choked quality despite being a tension-carrying chord by nature.
Fingerings
Open Position
How to Practice It
Since only the E and C strings need fretting, practice placing those two together while letting the G and A strings ring completely untouched — the main risk is accidentally muting one of the open strings with a stray finger. The F7-to-Bb resolution is worth isolating on its own, since hearing the tritone's pull land cleanly on Bb is the clearest way to internalize what a dominant seventh chord is actually doing.
Common Progressions
- V7 - I (F7 - Bb)
- IV7 borrowed into a C-major progression (C - F7 - C)
- I - IV7 - I (C - F7 - C), adding a brief bluesy color to a C-major loop
- A simple two-chord vamp between F7 and Bb works as a compact V7-I loop.
FAQ
- Why is F7 easier than plain F major?
- Two of its four strings ring completely open, while F major needs two fingers placed on non-adjacent strings with an open string between them — F7 simply asks for less.
- How does F7 resolve to Bb?
- Its flatted seventh and third together form a tritone, and resolving that unstable interval inward is what carries the ear straight to Bb's root and third.
- Can F7 substitute for plain F inside a C-major progression?
- Yes, briefly — as a borrowed IV7, it adds a bluesy or bossa-nova-tinged color before the progression returns to its more settled major harmony.
- Does this F7 shape keep any open strings?
- Yes — both the G and A strings ring open, preserving real resonance even while the chord carries dominant-seventh tension on the other two strings.
- What style of music leans on F7 most?
- Blues- and jazz-influenced ukulele arrangements, along with any material that ventures into the key of Bb, reach for F7's resolution regularly.
- How many chord tones does F7 pack into four strings?
- All four required tones — root, third, fifth, and flatted seventh — occupy exactly one string each, with none doubled, which is part of why the shape needs no barre.
- Is F7 a good chord to introduce a beginner to open-string seventh voicings?
- Yes — it's one of the gentlest introductions to the idea that adding a seventh doesn't always mean adding difficulty, since here it actually removes a finger compared to the plain triad.
- Would F7 ever substitute for F6 in a progression, given both add color to plain F?
- Not usually — F7's flatted seventh actively wants to resolve toward Bb, while F6's added sixth sits comfortably without pulling anywhere, so swapping one for the other changes the passage's forward momentum, not just its color.
- Does F7 ever get played higher up the neck for a brighter tone?
- Yes — a movable dominant-seventh barre shape further up the fretboard produces the same F7 notes with a tighter, more compressed sound, useful for songs whose other chords already sit higher on the neck.
- Does F7 work in a 12-bar blues progression?
- Yes, as the IV7 chord if the blues sits in the key of C, arriving after the opening C7 bars and giving the progression its expected shift in color before the turnaround back to C7 and G7.
F7 on other instruments: F7 on Guitar, F7 on Piano. Related: how chords are built, chord finder.