For making Jazz User Tracks, BIAB developers, please create a far more complex set of jazz chord training templates, as is done for Pop User Styles. I fell in love with BIAB because it had such a strong emphasis on jazz, salsa, blues, etc. However, making a user track is meaningless, unless the training template contains the many variations that you'd find in, e.g. the Jazz Real Books. Without a 9th, maj9th, flatted 9th, 6/9, dim, half dim, etc, one can't really create a useful jazz user track.

Since there's already an excellent video on making your own user tracks, a user gets a sudden disappointment when trying actually
USE a their newly created User Track(s). Since it makes sense to have this done in the same way the Pop User Track Templates were done, please DO get to this (I invested the $1k, & have kept it up to date each year). It would make NO sense for each user to create their own TEMPLATE files, since each person who wants to use this feature for Jazz will re-invent the wheel!

The quality of BIAB with User Tracks is now rather impressive; please keep it moving to a better & better product by really enabling Jazz User Track Development!