IME Toontrack does not do jazz very well- they tend to make everything too busy, especially latin jazz. I have been very disappointed as I wanted to make backing tracks to practice playing jazz guitar over and the Toontracks midi is pretty much unusable. It seems nobody at Toontrack really understands jazz and think that the more notes the better, the session players seem only interested in showing their chops and Toontrack doesn’t know enough to reel them in.
I would expect some elaborate patterns, but not almost exclusively. Even the drum bass and key tracks that are supposed to go together are all so elaborate that combined they make a jumbled mess. Toontrack needs to realize that not every instrument in a jazz tune is meant to play lead. The rhythm section should support the lead and not compete with them.
I guess if you are looking for something other than rock and metal Toontrack is a gamble.
