|5||x or C||3rd fretfr.||optionalopt.|
Guitar chords in the key of C major:
Chord C7sus4 notes: (C), F, Bb, C and G. You should not play the 6th string.
The note C on the fifth string is not required, but can be played on the 3rd fret if needed.
C dominant 7th suspended 4th chord's alternative names: C7sus, C7sus4.
1(C), 4(F), 5(G), b7(A#/Bb).