Chord · Piano

F♯ 9 Chord · Piano

F♯A♯C♯EG♯
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Interactive keyboard

Highlighted notes form this chord.

Notes

F♯ · A♯ · C♯ · E · G♯

Root: F♯

Intervals

1 · 3 · 5 · ♭7 · 9

How it is built

This chord starts on F♯ and applies the intervals 1, 3, 5, ♭7, 9. The result contains 5 distinct pitch classes per octave.

Explore related combinations

Guide and musical context

About F♯ 9 Piano Chord

F♯ 9 Piano chord contains F♯, A♯, C♯, E, G♯. Its sound is rich and tense, extending the dominant with a ninth.

Character and sound

Rich and tense, extending the dominant with a ninth.

Musical context and history

The dominant ninth extends a 7 chord while keeping its dominant tension. It is classic vocabulary in jazz, blues, funk, soul and R&B.

How and where it is used

It may resolve as a dominant or act as a stable vamp in groove-based styles.

On piano, the notes can be distributed between both hands and across different octaves. The interactive keyboard makes it easy to verify pitches and experiment with inversions or registers without changing the harmony. Everything you see and hear on this page comes from the same note set shown above.

Harmonic and musical relationships

As a dominant sonority on F♯, a common functional resolution moves toward B. Alterations and extensions change the color while preserving that tension-and-resolution reference.

The formula on this page is 1 · 3 · 5 · ♭7 · 9 and, from F♯, produces the notes F♯ · A♯ · C♯ · E · G♯.

Frequently asked questions

What notes are in the F♯ 9 Piano chord?

The notes are F♯, A♯, C♯, E, G♯.

What is its interval formula?

The formula is 1 · 3 · 5 · ♭7 · 9.

How does it sound and what is it used for?

Rich and tense, extending the dominant with a ninth. It may resolve as a dominant or act as a stable vamp in groove-based styles.

How can I check it on Piano?

Use the interactive diagram on this page and press Play or Note by note. The highlighted positions, written notes and playback all use the same pitch collection.