Cma conference 2019

“Thank U, Next”: The sustain of that dreamy electric piano in this chord loop solidifies the G♭ chord as a G♭M13 and the F chord is an F7(#9) secondary dominant (V/vi )! Then we have a regular B♭m before returning to the tonic — but not so fast! We haven’t really returned home, since it’s a D♭7, another secondary dominant (V/IV) that sends us back to G♭M13. These secondary dominants act like coal nuggets to fuel a perpetual motion chord-loop machine. Form-wise, you could also call the chorus extensions “post-choruses,” but I already used up my “P” for the pre-chorus

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