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Csus4/F is the C suspended 4th / F (1st inversion) guitar chord with F in the bass. It uses the notes C, F, and G and the interval formula 1-4-5.
The C suspended 4th suspended 4th chord replaces the third with a perfect fourth F, creating a suspended, unresolved sound. This tension naturally resolves to the major or minor third, adding anticipation and dynamic movement in rock and pop. With F in the bass, this voicing functions as the 1st inversion of C suspended 4th.
Also written as Csus4.
These are quick-start shapes for players who want the answer first and the deeper theory second.
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Each note below shows how the chord is built from its root. This is the theory layer underneath the fretboard shapes.
The root anchors the chord and defines its tonal center.
The fourth creates suspension and a sense of pull toward resolution.
The fifth reinforces stability and gives the chord its strong harmonic frame.
Every shape is shown with its diagram and exact fingering instructions.
Csus4/F uses the notes C, F, and G. Its interval formula is 1-4-5.
Csus4/F is also written as Csus4.
Place the 1st finger on the 1st fret of the 6th string. Place the 2nd finger on the 1st fret of the 1st string and 2nd string in barre position. Place the 3rd finger on the 3rd fret of the 5th string. Place the 4th finger on the 3rd fret of the 4th string. Let the third string ring open. Strum from the 6th string down.
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