In technical terms, it’s all about using chord extensions like 7th, 9th and 11th chords. And the result was a sound unlike any other in musical history. This chord at the very end of Clair de lune ...

Get the chords down and you’ll have hundreds of songs to try. Known as a I-IV-V (one-four-five’) progression, or ‘three-chord trick’, the chords are built on the first, fourth and fifth notes of the ...