18.32Dorian versus minor pentatonic

Over Dm7:

D Dorian:

D E F G A B C

D minor pentatonic:

D F G A C

Pentatonic leaves out:

E = 9

B = 13

So pentatonic is simpler.

Dorian gives more harmonic color.

Think:

Pentatonic = strong skeletal color Dorian = fuller diatonic palette