Jazzmandan is spot on...I know nothing of BIAB, but as a intermediate classically trained piano player I know that Jazz is a specialty onto itself. It takes years of special concentration in that area to play it well and even if you add nice jazz tracks it would be difficult to add to those tracks without training. In a few years I hope to find a jazz/blues type of teacher to add to my skill level and love of those great sounds. Good luck.

PS: You might be able to steal some piano jazz riffs from some u tube videos.

Good luck, it is a worth while endeavor...