Open G: D G D G B D [e.g., “That’s the Way” — Led Zeppelin]

Open C: C G C G C E [e.g., “Friends”; “Hats Off to (Roy) Harper” — Led Zeppelin]

Open D: D A D F# A D [e.g., “Bron-Y-Aur Stomp” — Led Zeppelin]

D A D G A D [e.g., “Black Mountain Side” — Led Zeppelin]