Looks like it will take some time for my program to harmonize Giant Steps in Bach style..
and not sure that is the most interesting direction.

Here's something cute, meanwhile. It has the ability to stick a user chosen chord in the middle of a piece and go back to the original line in a relatively smooth way.


Original beginning of Chorale from BWV 1.6:



Sticking an Eb chord in the middle:


So happy I know how to embed Soundcloud files now :)