|6||x or C||8th fretfr.||optionalopt.|
Guitar chords in the key of F:
Chord F7 (6th fret) notes: (C), F, A, Eb and F. You should not play the 1st string.
The note C on the sixth string is not required, but can be played on the 8th fret if needed.
F dominant 7th chord's alternative names: Fdom7, (F septim).
1(F), 3(A), 5(C), b7(D#/Eb).