Chord · F# Major
F♯ Chord
F♯ is F#, A# and C# — bright, stable. The reference triad.
F♯ on every instrument
The same 3 notes, 6 sets of hands. Open a diagram for alternate shapes, audio and the mistakes to avoid.
What F♯ is made of
F# (F# major) is built from the notes F#, A#, C#, with the interval pattern 1, 3, 5.
Stack 1, 3 and 5 on a root of F♯ and you get F#, A# and C#. That interval recipe is what makes the chord a major chord — move the same shape to another root and the character travels with it, which is why C sounds like a transposed F♯.
Major: Bright, stable. The reference triad.
Spelling: the notes above are written the way a score would write them, not simplified to the nearest piano key. That is why this chord is spelled with F♯ rather than its enharmonic equivalent.
Keys that contain F♯
All 3 notes sit inside the scale of 12 keys. The roman numeral marks the degree the chord is rooted on.
Other chords on F♯
Same root, different colour.
Questions people ask about F#
- What notes are in the F# chord?
- F# is made of F#, A# and C# — the 1, 3 and 5 degrees of a major chord built on F#.
- What keys use the F# chord?
- Every note of F# belongs to 12 keys: B Major (V), Db Major (IV), F# Major (I), Gb Major (I), C# Major (IV), Cb Major (V), Bb Minor (VI), G# Minor (VII), D# Minor (III), Eb Minor (III), A# Minor (VI), Ab Minor (VII). The roman numeral is the scale degree the chord is rooted on.
- How do you play F# on guitar and piano?
- This page shows F# on guitar, piano, ukulele, bass, mandolin and banjo — 12 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.
- Is F# the same as Gb?
- Yes. F# and Gb are enharmonic — identical pitches written two different ways. Which spelling you use depends on the key you are in; F# is the spelling this site treats as canonical.
Learn the theory behind it
Why F♯ behaves the way it does — the guides that explain the chord instead of just spelling it.