Several songs have this kind of progression: M, M7+, M7, M6 or m, m7+, m7, m6, for instance:
- First verse of Sinatra's "My way":
And n[D]ow the end is n[D7M]ear and so I f[D7]ace the final c[B7]urtain
- This verse of Beatle's "Michelle"
I will sa[Fm]y the [Fm7+]only w[Fm7]ords I kn[Fm6]ow that y[C#]ou'll underst[C]and
As those notes are not all diatonic, I'd like to know what it is, is there a name for this kind of progression, is there any theory behind it?
Thank you!