Amazing what the current BIAB offers with the real time solo/accompanyment windows, into the thinking of other pro musicians. I have also relished information of standards and jazz arrangements and individual improvations available in fakebook/cd...very comprehensive as great archives you can listen to and study/copy and format...especially in training your ear and mind to listen to "the greats" playing their specific chordal/melodic/vocal
hit recordings. To my mind, lots of bang for the buck...and it works for this inquisitive 70 year old mind.
http://realbooksoftware.com/OrderForm.php

BIAB offers lots of feedback on left-hand-right-hand real time approaches.
If you want to study the giants in whatever voices/harmony that's developed over the jazz age, these other
compiliations are available for you.

Yamaha...Motif ES-8, Motif Rack, CS6X
Korg...Karma,Triton Classic, PA-80, M-1+
AkaiSampler-S5000, Roland.. X5080 Rack/G-1000 Arranger
Various Guitars/Basses Amps Pedals Rec.Equip.


Plus, BIAB 2015 and Sonar Platinum 2015 Upgrade from Cakewalk's Sonar X-3