Do you know the 2-5-1 to minor chords? Many people don’t! There are multiple ways to add a 2-5-1 to minor as a jazz pianist. If you play in a ballad style, you’d play differently than if you played in a medium or up-tempo swing tune.
I have to say that I had been playing for many years until I realized the importance of practicing 2-5-1 to minor in all keys. Not only so that I would be able to play medium and/or up-tempo tunes where 2-5-1 to minor occurs, but in ballads as well.
See video here: