That's a classic tune. Every online version I can find of the Casinos singing it is in the key of A. They also use a different arrangement than the online sheet music in the key of F. The Casinos version does follow a I/IV/II/V form with a bII7 passing chord to cycle back to the I. I sketched it out like this and it sounds pretty close.
[img]https://www.dropbox.com/s/lu9kerpzhihvae8/Doo%20Whop.JPG?dl=0[/img]



Last edited by DC Ron; 04/01/23 03:32 AM.

DC Ron
BiaB Audiophile
Presonus Studio One
StudioCat DAW dual screen
Presonus Faderport 16
Too many guitars (is that a thing?)