Technically, extended chords include 9th, 11th and 13th intervals, but it’s easier to think of 6ths and 7ths in the same way too. All these chords add notes to basic major or minor chords (C, Dm and ...

Hemispheres – Rush (Image credit: Chords) One hit of this chord with some light distortion and chorus and you’ll instantly be in the sonic territory of Rush ’s Alex Lifeson. Alternatively, play it ...