The top three notes give us the b9th (Eb), the 3rd (F#) and the 13th (B). This Gmaj9 gives a nice finishing chord, meaning ...

Use our acoustic guitar ... or minor chord that uses the same root note, Bsus4 to B, or Asus4 to A, for example. In blues ...

From The Doobie Brothers to The Smiths, James Brown to Metallica, 7th barre chords are fundamental for playing with more color and sophistication ...