8.19Level 6 — add 9ths only where there is room

For a ii–V–I:

Fm9

B♭13

E♭maj9.

But if chords change quickly:

do not force a full three-note RH color voicing on every chord.

Sometimes:

Fm7 shell

B♭7 shell

E♭maj9 color

is better.

Let the destination breathe.