About the F7 chord
To play F dominant 7th, use the first shape above. Place your index finger on the 1st fret of the E string, your middle finger on the 2nd fret of the G string, your ring finger on the 3rd fret of the C string, and your pinky finger on the 3rd fret of the A string. Strum all four strings and check that each one rings cleanly.
Root
F
Quality
Dominant 7th
Notes
F · A · C · Eb
How the F7 chord works
F
Root(1)
The home note. It gives the chord its name.
A
Major third(3)
The major-third interval that establishes the chord's major base.
C
Perfect fifth(5)
Adds strength and stability.
Eb
Minor seventh(♭7)
Adds the defining minor-seventh color.