Reading about the user tracks feature, I get the idea of playing chord tones over chords and have learned it's helpful to record UT's over progressions I will be using.
My first question is this: Should user tracks be very basic rhythmically? Does BIAB change the rhythm to match the style or does it need a swing 1/8th note UT to sound right for that style?
Second question: Will BIAB add appropriate non recorded non chord tones?