What is Gm7 chord?
The Gm7 is a four-note chord that shares three of the notes of the Gm chord, plus the seventh note of F. When playing the Gm7 chord, listen for all four notes and hear how they meld together to create a distinct chord: G, Bb, D, and F.
What is D7 on guitar?
The D7 chord (also referred to as “D dominant seventh chord”) is a simple chord found in a variety of blues, country and mellow-rock music. It provides an uplifting sound in a chord progression, which is why it’s used in these sometimes-melancholy genres.