22.12Hear both versions

Version A:

Dm7 → G7 → Cmaj7

Version B:

Dm7 → D♭7 → Cmaj7

Try minimal voicings.

For Dm7:

LH D

RH F-C

For D♭7:

LH D♭

RH F-B

For Cmaj7:

LH C

RH E-B

Notice how incredibly smooth the inner voices are.