The most elegant key change in all of pop music

A video on YouTube. In Music Lessons, a Krater category.

Summary by Krater

Adam Neely analyzes the music theory behind Céline Dion's 2016 live performance of 'All By Myself,' examining chord progressions, key changes, and modal mixture.

From the video

Answers: What is the music theory behind Céline Dion's high note in All By Myself?

modal mixture
common tone modulation
enharmonic double chromatic mediant modulation
key changes
music theory
Céline Dion
All By Myself
Eric Carmen
Sergei Rachmaninoff

What it concludes

Céline Dion's performance of All By Myself features modal mixture, common tone, and enharmonic double chromatic mediant modulation.
The flat six e-flat chord serves as a nostalgia note, resolving down a half step to the five of the major chord.
The high note in All By Myself and its subsequent key change function as a physical and emotional climax that ties into the song's narrative of loneliness.

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