What notes are in the F#add9 chord?

F#add9 is made of F#, A#, C# and G# — the 1, 3, 5 and 9 degrees of an add9 chord built on F#.

What keys use the F#add9 chord?

Every note of F#add9 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#add9 on guitar and piano?

This page shows F#add9 on guitar, piano, ukulele and mandolin — 6 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.

Is F#add9 the same as Gbadd9?

Yes. F#add9 and Gbadd9 are enharmonic — identical pitches written two different ways. Which spelling you use depends on the key you are in; F#add9 is the spelling this site treats as canonical.

Chord · F# Add 9

F♯add9 Chord

F♯add9 is F#, A#, C# and G# — major triad with an added 9th; pop and folk staple.

Hear it

F♯add9 on every instrument

The same 4 notes, 4 sets of hands. Open a diagram for alternate shapes, audio and the mistakes to avoid.

What F♯add9 is made of

F# Add 9 (F# add 9) is built from the notes F#, A#, C#, G#, with the interval pattern 1, 3, 5, 9. A common add 9 chord across many styles.

Stack 1, 3, 5 and 9 on a root of F♯ and you get F#, A#, C# and G#. That interval recipe is what makes the chord an add9 chord — move the same shape to another root and the character travels with it, which is why D♭add9 sounds like a transposed F♯add9.

Add 9: Major triad with an added 9th; pop and folk staple.

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♯add9

All 4 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 add9 shape, moved

The identical interval recipe, built on other roots.

D♭add9Db Add 9 E♭add9Eb Add 9 A♭add9Ab Add 9 B♭add9Bb Add 9 Cadd9Cadd9 Dadd9Dadd9 Eadd9Eadd9 Fadd9Fadd9

Questions people ask about F#add9

What notes are in the F#add9 chord?: F#add9 is made of F#, A#, C# and G# — the 1, 3, 5 and 9 degrees of an add9 chord built on F#.
What keys use the F#add9 chord?: Every note of F#add9 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#add9 on guitar and piano?: This page shows F#add9 on guitar, piano, ukulele and mandolin — 6 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.
Is F#add9 the same as Gbadd9?: Yes. F#add9 and Gbadd9 are enharmonic — identical pitches written two different ways. Which spelling you use depends on the key you are in; F#add9 is the spelling this site treats as canonical.

Learn the theory behind it

Why F♯add9 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 AttitudeSuspending or adding a tone is a voicing decision, the same kind as an inversion or a slash chord.5 min read Chord Progressions ExplainedThese chords earn their keep inside a progression, leaning on the plain chord that follows.7 min read