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F♯sus4 Chord

F♯sus4, also called F♯ suspended fourth, contains F♯, B and C♯. Use the piano diagram to find the notes, hear the chord and explore its inversions.

F♯sus4 piano notes and keyboard diagram

F♯ Suspended 4th
F♯sus4
Chord tones
F♯BC♯
Formula
145
Notes
F♯ · B · C♯
Quality
Suspended fourth chord
Formula
1 · 4 · 5
Keyboard range
C3–C6
Position
Notes from low to high
F♯4B4C♯5
F♯sus4
Bass: F♯4
Download F♯sus4 PDF
Simple reference tone; not a recording of an acoustic piano.

The f♯ suspended 4th chord replaces the third with a perfect fourth.

Preserve the written note spelling shown for this chord.

Choose a position to keep the written notes, sounding keys, bass note, playback and print reference synchronized.

How is the F♯sus4 chord built?

F♯sus4 uses 1–4–5: F♯–B–C♯.

Compare F♯ Suspended 4th

Compared with F♯ major, replace the third with the fourth.

F♯sus4 inversions

The chord tones stay the same while the lowest chord tone changes.

F♯ Suspended 4th: root position, first inversion, and second inversion
PositionSymbolNotes, low to highBass
Root position, current selectionF♯sus4F♯4–B4–C♯5F♯4
First inversionF♯sus4/BB4–C♯5–F♯5B4
Second inversionF♯sus4/C♯C♯5–F♯5–B5C♯5
Reference scope

Fingering is not provided for this reference

Fingerings are not included on this page. The diagram shows note positions, not a prescribed hand shape.

Use the written notes, keyboard positions and playback without treating the diagram as a required hand shape.

Read left- and right-hand finger numbers
Sources and scope

Questions about F♯sus4

What notes are in F♯sus4?

F♯, B, C♯.

What is the formula for F♯sus4?

1–4–5.

Does an inversion change the chord root?

No. The root stays the same; the lowest chord tone changes.

Interactive practice

Build F♯sus4 on the keyboard

Select the three pitch classes that make F♯sus4, then check your answer.

This one-octave exercise checks pitch classes. Order and octave do not affect the result; fingering and live performance are not assessed.

3Choose three pitch classes

One octave, C through B. Select a key again to remove it.

One-octave keyboard from C through B
Selected: none
Choose notes, then check your answer.

Print this chord reference

Download F♯sus4 PDF