4.5The next four chords

Fmaj7 → Bm7♭5 → E7 → Am7

In A minor:

Bm7♭5 → E7 → Am

is:

iiø → V → i

So the tune contains both:

major ii–V–I

and:

minor iiø–V–i

back-to-back.

This is why it is such a useful study.