I can play piano very well; sell them, not so much.
My problem is that while I admire latter-day 'smooth jazz' and the like, what I would really like to learn is the stuff from the 40's through the 60's, and almost always these were cut with upright bass and often, as Will Lee once remarked of those classic recordings, the 'bass is more felt than heard'. It's almost impossible for me to pick out the bass lines.
I'd have to investigate for modern recordings of those classics. That was why I instantly glommed onto the Natalie Cole recordings where she revisited her Dad's classics and others from in-period: I could hear everything.
I'd have to admit I'm virtually, totally ignorant when it comes to jazz, and it pains me to say so.
I'm surprised Ken Burns' documentary "Jazz" hasn't been mentioned here yet. It's an excellent primer, especially on the roots of Jazz & how it has changed over time (hint: Jazz, Rock n' Roll, it's all the Blues). I think the strength of the documentary (some critics don't agree) is using the biographies of several key musicians as a hook to the music - prime example is Louis Armstrong & how Pop's influence cannot be overemphasized. Every city he moved to, Jazz flourished. Critics have pointed out shortcomings of the documentary, but I thoroughly enjoyed it, learned quite a bit, & watched some episodes more than once.
From it's beginning till Bebop, Jazz was dance music, yet many people think Jazz is goateed guys in turtlenecks enthusiastically talking about a Free Form racquet of dissonance. Ken Burn's Jazz is a worthwhile way to go deeper than the mind's eye image, & will provide plenty of leads you'll want to check out without feeling overwhelmed by the subject.
BTW, I have less piano skills than the OP. I bought a decent, used electronic keyboard for about $30 & a workbook to do something about it. I haven't plugged it in recently, but i don't beat myself up about it - I have a full plate, & learning Music is not a sprint.