About the Gm7 chord
To play G minor 7th, use the first shape above. Place your index finger on the 1st fret of the E string, your middle finger on the 1st fret of the A string, and your ring finger on the 2nd fret of the C string. Leave the G string open. Strum all four strings and check that each one rings cleanly.
Root
G
Quality
Minor 7th
Notes
G · Bb · D · F
How the Gm7 chord works
G
Root(1)
The home note. It gives the chord its name.
Bb
Minor third(♭3)
The defining minor interval above the root.
D
Perfect fifth(5)
Adds strength and stability.
F
Minor seventh(♭7)
Adds the defining minor-seventh color.