Chord · F Major (1st Inversion)
F/3 Chord
F/3 is A, C and F — major triad with the third in the bass.
F/3 on every instrument
The same 3 notes, 1 sets of hands. Open a diagram for alternate shapes, audio and the mistakes to avoid.
What F/3 is made of
F Major (1st Inversion) (F major (1st inversion)) is built from the notes A, C, F, with the interval pattern 3, 5, 1. A common major (1st inversion) chord across many styles.
Stack 3, 5 and 1 on a root of F and you get A, C and F. That interval recipe is what makes the chord a major first inversion chord — move the same shape to another root and the character travels with it, which is why E/3 sounds like a transposed F/3.
Major (1st Inversion): Major triad with the third in the bass.
Spelling: the notes above are written the way a score would write them, not simplified to the nearest piano key. Every tone here lands on its own letter — no accidentals needed.
Keys that contain F/3
All 3 notes sit inside the scale of 6 keys. The roman numeral marks the degree the chord is rooted on.
Other chords on F
Same root, different colour.
The same major first inversion shape, moved
The identical interval recipe, built on other roots.
Questions people ask about F/3
- What notes are in the F/3 chord?
- F/3 is made of A, C and F — the 3, 5 and 1 degrees of a major first inversion chord built on F.
- What keys use the F/3 chord?
- Every note of F/3 belongs to 6 keys: C Major (IV), F Major (I), Bb Major (V), A Minor (VI), D Minor (III), G Minor (VII). The roman numeral is the scale degree the chord is rooted on.
- How do you play F/3 on guitar and piano?
- This page shows F/3 on piano — 1 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.
Learn the theory behind it
Why F/3 behaves the way it does — the guides that explain the chord instead of just spelling it.