The short version
- F♯7 is F sharp seventh, also written G♭7. Its notes are F♯, A♯, C♯ and E (formula 1 – 3 – 5 – ♭7).
- Easiest way to play it: a barre on the 2nd fret, frets 2 4 2 3 2 2 from low E to high E (x = don’t play).
- It sounds bluesy, restless, waiting to resolve. Use it as the V7 that pulls a song home, or play every chord as a 7th and congratulations, you’re in a 12-bar blues.
- F♯7 turns up in 2 keys: B major (as the V7) and G♯ minor (as the VII7).
- Can’t barre yet? Capo 2 and play an open E7 shape.
How to play F♯7 on guitar, step by step
Start with the shape marked “Start here” above: the barre chord, root on the 6th string (2nd fret).
- Lay your index finger flat across fret 2, from the 6th (low E) string to the 1st (high E) string. That’s the barre: press near the fret wire and roll the finger slightly onto its side.
- Put your middle finger on fret 3 of the 3rd (G) string.
- Put your ring finger on fret 4 of the 5th (A) string.
- Strum from the 6th (low E) string down, then press Strum on this page to check it sounds the same.
Once that’s comfy, try the other shape. Shape 2 is the barre chord, root on the 5th string (9th fret): x 9 11 9 11 9. Same chord, different spot on the neck, which helps when the next chord lives nearby.
No barre? No problem. Pop a capo on the 2nd fret and play the open E7 shape: it comes out as F♯7. (Capo 4 with an open D7 shape works too.) Barre chords take everyone a few weeks. Mine sounded like a kettle for a month.
Notes in the F♯7 chord
F♯7 is built from 4 notes. On guitar you’ll often play some of them twice, on different strings. That’s normal; the chord is still F♯7.
| Note | Interval | What it does |
|---|---|---|
| F♯ | 1 root | Names the chord and anchors the bass. |
| A♯ | 3 major third | Makes it major (happy). |
| C♯ | 5 perfect fifth | Adds weight; often the first note left out. |
| E | ♭7 minor (flat) seventh | The bluesy pull towards the next chord. |
What F♯7 sounds like, and when to use it
A major chord with a flattened seventh on top. It sounds like it’s standing by the door with its coat on: it wants to go somewhere, usually to the chord a fifth below. Blues runs on these. Use it as the V7 that pulls a song home, or play every chord as a 7th and congratulations, you’re in a 12-bar blues.
What key is F♯7 in?
F♯7 turns up in 2 keys: B major (as the V7) and G♯ minor (as the VII7). Tap a key to see the rest of its chords on the circle of fifths.
| Key | Numeral | Spelled as |
|---|---|---|
| B major | V7 | F♯7 |
| G♯ minor | VII7 | F♯7 |
Chords that go with F♯7
Here’s a progression to try: F♯7 – B7 – F♯7 – C♯7 (I7–IV7–I7–V7), the bones of a 12-bar blues.
More progressions → Transpose it →
Using F♯7 in a Suno prompt
Suno pays attention to chord names in a style prompt, at least some of the time. Put the progression in, keep the BPM, and let it fill in the rest. Then compare its guitar part with the shapes above.
Blues rock, 96 BPM, chord progression F♯7 – B7 – F♯7 – C♯7, 12-bar blues shuffle, overdriven electric guitar, walking bass, gritty male vocals, swaggering
F♯7 chord FAQ
What notes are in the F#7 chord?
F♯7 has 4 notes: F♯ (the root), A♯ (the major third), C♯ (the perfect fifth) and E (the minor (flat) seventh). The chord formula is 1 – 3 – 5 – ♭7.
How do you play F#7 on guitar?
The medium way is barre chord, root on the 6th string (2nd fret). Strings from low E to high E: 2 4 2 3 2 2 (x means don’t play that string). Lay your index finger flat across fret 2, from the 6th (low E) string to the 1st (high E) string. That’s the barre: press near the fret wire and roll the finger slightly onto its side. Put your middle finger on fret 3 of the 3rd (G) string. Put your ring finger on fret 4 of the 5th (A) string.
Is F#7 the same as Gb7?
Yes. F♯7 and G♭7 are the same chord with the same fingering. They are just spelled differently. You’ll see F♯7 in sharp keys and G♭7 in flat keys.
What key is F#7 in?
F♯7 turns up in 2 keys: B major (as the V7) and G♯ minor (as the VII7). Major keys: B major. Minor keys: G♯ minor.
What is the difference between F#7 and F#maj7?
Both add a seventh to the F sharp major chord. F♯7 adds E, the bluesy flat seventh. F♯maj7 adds E♯, a semitone higher, which sounds dreamy and jazzy instead.
How can I play F#7 without a barre?
Use a capo. Put it on the 2nd fret and play the open E7 shape or Put it on the 4th fret and play the open D7 shape. It sounds as F♯7. You can also play just the top three or four strings of the barre shape.
Other dominant 7th chords
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