The original Changes/McChanges software was written in 1989.  At that time, there were only about 120 die-hard college jazz educators who were willing to try this new concept of cataloging solutions to common jazz
improvisation problems.  Making matters worse, there were only a few educators in the U.S. who had access to computers and fewer who actually had machines.

USERsoft was quite far ahead of its time.  Now, almost every educator either owns or has access to many different types of sophisticated computers.  Please try out my new commercial web site:  www.changes98.com    Be sure to e-mail me your latest address so I can send you product literature.