[Steely Tom]

Larry Carlton plays guitar on it.

I've always assumed that was Larry Carlton.

The incredibly fluent Mixolydian scale certainly sounds like him. It is played just before the words "maybe you and me...".

By the way, another great song that prominently features the Mixolydian scale is Who Am I, recorded in 1966 by Petula Clark.

[Magic Fingers]

Thanks for the link.