F Suspended 2nd Chord

Chord Tones: F Suspended 2nd Chord

Symbol: sus2 — Formula: 1-2-5

DegreeNoteFrequency (A=440, Equal)
1 F4 349.228 Hz
2 G4 391.995 Hz
5 C4 261.626 Hz

Chord Notation

Notation TypeSymbol / Value
Lead Sheet SymbolFsus2
All Common Symbolssus2
Interval Formula1-2-5
Harmonic Categoryopen

Roman numeral (e.g. I, IV, V) and Nashville Number notation are key-dependent. See Keys pages for chord function within specific keys.

Inversions

InversionNotes (low to high)Bass NoteSlash Notation
Root Position F4 G4 C4 F F Suspended 2nd Chord
First Inversion G4 C4 F4 G F Suspended 2nd Chord/G
Second Inversion C4 F4 G4 C F Suspended 2nd Chord/C

Harmonic Function

The F sus2 chord commonly functions as the subdominant (IV) in C major — plagal cadence endpoint. Its harmonic role varies by key — in major keys it provides stable harmonic grounding.

The sus2 chord replaces the third with a major second, creating an open, ambiguous sound with no major or minor quality. It is widely used in rock and pop for its airy, unresolved character. The F Suspended 2nd Chord specifically contains 3 notes: F, G, C (formula: 1-2-5). On guitar, the F barre chord is famously one of the first challenging shapes beginners encounter, but its tight voicing produces a clear, focused sound. Classical, jazz, and gospel music frequently feature F-rooted chords, and brass-heavy arrangements in concert band naturally gravitate to keys that include F as a primary chord.

Common Progressions

The F Suspended 2nd Chord frequently appears in these progression patterns (shown in Roman numeral notation relative to key):

Songs Featuring the Suspended 2nd Chord

Well-known songs where the F Suspended 2nd Chord — or this chord type — plays a prominent role:

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

NoteEqual Temp.PythagoreanJust Intonation
F4 349.228 Hz 347.654 Hz 348.834 Hz
G4 391.995 Hz 391.111 Hz 392.438 Hz
C4 261.626 Hz 260.740 Hz 261.626 Hz

Scales Containing the F Suspended 2nd Chord

These scales include the F Suspended 2nd Chord as a diatonic or characteristic chord: