What notes are in the D/F# chord?

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

What keys use the D/F# chord?

Every note of D/F# belongs to 6 keys: G Major (V), D Major (I), A Major (IV), E Minor (VII), B Minor (III), F# Minor (VI). The roman numeral is the scale degree the chord is rooted on.

How do you play D/F# on guitar and piano?

This page shows D/F# on guitar and piano — 2 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.

Is D/F# the same as D/3?

Yes. D/F# and D/3 are enharmonic — identical pitches written two different ways. Which spelling you use depends on the key you are in; D/F# is the spelling this site treats as canonical.

Chord · D/F#

D/F♯ Chord

D/F♯ is F#, A and D — major triad with the third in the bass.

Hear it

D/F♯ on every instrument

The same 3 notes, 2 sets of hands. Open a diagram for alternate shapes, audio and the mistakes to avoid.

Guitar1 voicing

Piano1 voicing

What D/F♯ is made of

D/F# (D major first inversion) is built from the notes F#, A, D, with the interval pattern 3, 5, 1.

Stack 3, 5 and 1 on a root of D and you get F#, A and D. 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 D/F♯.

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. That is why this chord is spelled with F♯ rather than its enharmonic equivalent.

Keys that contain D/F♯

All 3 notes sit inside the scale of 6 keys. The roman numeral marks the degree the chord is rooted on.

Major keys

Minor keys

Other chords on D

Same root, different colour.

DD Major DmD Minor DdimD Diminished DaugD Augmented Dsus2D Suspended 2nd Dsus4D Suspended 4th D5D Power Chord D6D Major 6th

The same major first inversion shape, moved

The identical interval recipe, built on other roots.

E/3E Major (1st Inversion)F/3F Major (1st Inversion)A/3A Major (1st Inversion)B/3B Major (1st Inversion)F♯/3F# Major (1st Inversion)D♭/3Db Major (1st Inversion)E♭/3Eb Major (1st Inversion)A♭/3Ab Major (1st Inversion)

Questions people ask about D/F#

What notes are in the D/F# chord?: D/F# is made of F#, A and D — the 3, 5 and 1 degrees of a major first inversion chord built on D.
What keys use the D/F# chord?: Every note of D/F# belongs to 6 keys: G Major (V), D Major (I), A Major (IV), E Minor (VII), B Minor (III), F# Minor (VI). The roman numeral is the scale degree the chord is rooted on.
How do you play D/F# on guitar and piano?: This page shows D/F# on guitar and piano — 2 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.
Is D/F# the same as D/3?: Yes. D/F# and D/3 are enharmonic — identical pitches written two different ways. Which spelling you use depends on the key you are in; D/F# is the spelling this site treats as canonical.

Learn the theory behind it

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

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 Functional Harmony: Three Roles, One EngineAn inverted chord still has a job in the key. Here is how to hear it.6 min read