102.8Level 2 — reduce ii–V–I

Full:

Dm9 → G13 → Cmaj9.

Reduce to:

Dm7 → G7 → Cmaj7.

Then:

LH roots D-G-C.

RH:

F-C → F-B → E-B.

Then reduce RH further:

F → F → E.

Now harmony is mostly carried by:

bass + one line.