F♯add9 chord on piano

The F sharp add9 chord (F♯add9) is F♯, A♯, C♯ and G♯. Here it is on the keyboard, with the fingers to use, every inversion and how it fits into keys.

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add nine chord

F♯, A♯, C♯ and G♯

F♯add9 chord on a piano keyboard: F♯, A♯, C♯ and G♯, starting from middle C upwardC4C5F♯A♯C♯G♯
Root
F♯
Major third
A♯
Perfect fifth
C♯
Major ninth
G♯

Formula

1 3 5 9 (4, 7, 14 half steps above F♯)

Fingering in root position

F♯add9 root position: notes from the bottom up and fingering
NotesF♯A♯C♯G♯
Right hand1235
Left hand5321

F♯add9 inversions

F♯add9 has 3 inversions. Each one keeps the same notes and puts a different one at the bottom, so your hand can stay close to the chord before or after it.

F♯add9

Root position

F♯add9, root position, on the piano: F♯, A♯, C♯ and G♯ from the bottom upC4C5F♯A♯C♯G♯
F♯add9 root position: notes from the bottom up and fingering
NotesF♯A♯C♯G♯
Right hand1235
Left hand5321

F♯add9/A♯

First inversion

F♯add9, first inversion, on the piano: A♯, C♯, F♯ and G♯ from the bottom upC4C5A♯C♯F♯G♯
F♯add9/A♯ first inversion: notes from the bottom up and fingering
NotesA♯C♯F♯G♯
Right hand1245
Left hand5421

F♯add9/C♯

Second inversion

F♯add9, second inversion, on the piano: C♯, F♯, G♯ and A♯ from the bottom upC4C5C♯F♯G♯A♯
F♯add9/C♯ second inversion: notes from the bottom up and fingering
NotesC♯F♯G♯A♯
Right hand1345
Left hand5321

F♯add9/G♯

Third inversion

F♯add9, third inversion, on the piano: G♯, A♯, C♯ and F♯ from the bottom upC4C5G♯A♯C♯F♯
F♯add9/G♯ third inversion: notes from the bottom up and fingering
NotesG♯A♯C♯F♯
Right hand1235
Left hand5431

Where F♯add9 fits

All of its notes are in F♯ major and B major, so it fits naturally in those keys.

How F♯add9 is built

F♯ is the root, A♯ the major third, C♯ the perfect fifth and G♯ the major ninth.

An add9 chord is a major chord plus the ninth, the second note of the scale an octave higher, with no seventh. It is usually played with the ninth on top: F♯, A♯, C♯ and G♯.

Every chord takes every other letter of the alphabet, so the letters of F♯add9 are F, A, C, G. That is why it is spelled F♯, A♯, C♯ and G♯.

Find F♯add9 yourself

Without looking at the diagrams, find the chord on the keyboard, then each inversion. Saying the notes out loud as you tap them helps them stick.

Step 1 of 4

Tap the notes of F♯add9, in any octave and any order.

CDEFGABCDEFGAB

Practice F♯add9 in real music

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Questions

What notes are in the F♯add9 chord?

F♯add9 has four notes: F♯, A♯, C♯ and G♯. F♯ is the root, A♯ the major third, C♯ the perfect fifth and G♯ the major ninth.

What fingers do you use for F♯add9 on piano?

In root position, play F♯, A♯, C♯ and G♯ with right hand fingers 1, 2, 3 and 5 (thumb, index finger, middle finger and little finger) and left hand fingers 5, 3, 2 and 1. The fingers change a little in each inversion; every inversion on this page shows its own.

What are the inversions of F♯add9?

F♯add9 has 3 inversions, one for each note other than the root at the bottom. First inversion (F♯add9/A♯): A♯, C♯, F♯ and G♯. Second inversion (F♯add9/C♯): C♯, F♯, G♯ and A♯. Third inversion (F♯add9/G♯): G♯, A♯, C♯ and F♯.

What is an add nine chord?

An add9 chord is a major chord plus the ninth, the second note of the scale an octave higher, with no seventh. It is usually played with the ninth on top: F♯, A♯, C♯ and G♯. All the notes of F♯add9 are in F♯ major and B major.