Digital Sound & Music: Concepts, Applications, & Science, Chapter 3, last updated 6/25/2013
Figure 3.38 “Over the Rainbow” played in C with chords of “Twinkle, Twinkle Little Star”
It’s remarkable how the color of a melody can shift
when the accompanying chords are changed only slightly.
Figure 3.39 shows “Over the Rainbow” played in the key of
E♭ with the chord sequence I III IV I IV I III V
I For the key of E♭, these chords are E♭, G minor, A♭,
E♭, A♭, E♭, G minor, B♭, E♭. The use of G minor adds
a melancholy tone which fits the song’s theme. We could also
change the fourth chord, currently an E♭ major, to a G minor
and add to this effect.
key of C
key of E-flat