Guitar chords in the key of F:
F Gm Am Bb C Dm Edim

Chord F7 notes: F, C, Eb, A, C or (Eb) and F.

This chord is played by placing a barre on fret one with your index finger. The note Eb on the second string is not required, but can be played on the 4th fret if needed.

F dominant 7th chord's alternative names: Fdom7, (F septim).

Steps: 1-3-5-b7.
1(F), 3(A), 5(C), b7(D#/Eb).