What notes are in the F#/5 chord?

F#/5 is made of C#, F# and A# — the 5, 1 and 3 degrees of a major second inversion chord built on F#.

What keys use the F#/5 chord?

Every note of F#/5 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#/5 on guitar and piano?

This page shows F#/5 on piano — 1 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.

Is F#/5 the same as Gb/5?

Yes. F#/5 and Gb/5 are enharmonic — identical pitches written two different ways. Which spelling you use depends on the key you are in; F#/5 is the spelling this site treats as canonical.

Chord · F# Major (2nd Inversion)

F♯/5 Chord

F♯/5 is C#, F# and A# — major triad with the fifth in the bass.

Hear it

F♯/5 on every instrument

The same 3 notes, 1 sets of hands. Open a diagram for alternate shapes, audio and the mistakes to avoid.

Piano1 voicing

What F♯/5 is made of

F# Major (2nd Inversion) (F# major (2nd inversion)) is built from the notes C#, F#, A#, with the interval pattern 5, 1, 3. A common major (2nd inversion) chord across many styles.

Stack 5, 1 and 3 on a root of F♯ and you get C#, F# and A#. That interval recipe is what makes the chord a major second inversion chord — move the same shape to another root and the character travels with it, which is why C/5 sounds like a transposed F♯/5.

Major (2nd Inversion): Major triad with the fifth in the bass.

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 C♯ rather than its enharmonic equivalent.

Keys that contain F♯/5

All 3 notes sit inside the scale of 12 keys. The roman numeral marks the degree the chord is rooted on.

Major keys

Minor keys

Other chords on F♯

Same root, different colour.

F♯F# Major F♯mF# Minor F♯dimF# Diminished F♯augF# Augmented F♯sus2F# Suspended 2nd F♯sus4F# Suspended 4th F♯5F# Power Chord F♯6F# Major 6th

The same major second inversion shape, moved

The identical interval recipe, built on other roots.

C/5C Major (2nd Inversion)D/5D Major (2nd Inversion)E/5E Major (2nd Inversion)G/5G Major (2nd Inversion)A/5A Major (2nd Inversion)B/5B Major (2nd Inversion)D♭/5Db Major (2nd Inversion)E♭/5Eb Major (2nd Inversion)

Questions people ask about F#/5

What notes are in the F#/5 chord?: F#/5 is made of C#, F# and A# — the 5, 1 and 3 degrees of a major second inversion chord built on F#.
What keys use the F#/5 chord?: Every note of F#/5 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#/5 on guitar and piano?: This page shows F#/5 on piano — 1 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.
Is F#/5 the same as Gb/5?: Yes. F#/5 and Gb/5 are enharmonic — identical pitches written two different ways. Which spelling you use depends on the key you are in; F#/5 is the spelling this site treats as canonical.

Learn the theory behind it

Why F♯/5 behaves the way it does — the guides that explain the chord instead of just spelling it.

Barre Chords — The Wall Every Guitarist ClimbsThis one asks for a barre. The article is the fix for the buzzing and the aching hand.7 min read Chord Inversions and Slash Chords — Same Notes, Different AttitudeSame notes, different bass note — what the slash in the name is actually doing.5 min read Voice Leading — Hold What You Can, Move Only What You MustInversions exist so your fingers move less between chords. This is the technique behind them.6 min read