I not a fan of Michael McDonald (or any singer who’s voice is so high pitched he sounds like he snagged his wedding tackle in the zipper of his trousers). S’why I prefer Russian choral music to Italian opera. Give me the thunder of bass baritones over the ear-piercing screech of tenors any day. Or to put it another way, Men (with a capital “M”) over castratos or contratenors.
I even cooled on the Doobies when McDonald joined the band. However, his vocals on “Peg” are one of the most extraordinary vocal performances of all time. He’s singing 4-part harmony -— with himself. The four parts are at half-step intervals, and he sang each part cold, not listening to any of the other parts for reference. All overdubs, all natural, no autotune or other electronic trickery, just perfect pitch. And it took about a thousand takes to get it right (by Fagen & Becker’s standards).
And the result is glorious.
McDonald is classified as a baritone. So you’re just talking shit.