G suspended 2nd chord

What each note does

• G is the root. It names the chord and is the note your ear hears as home.
• There is no third. A, the second, sits in its place, so the chord is neither major nor minor. It wants to resolve to G or Gm.
• D is the fifth. It adds weight without changing the character, so it is the first note to drop when a voicing gets crowded.