I do have the source code, but there are a couple of problems.
First, I am not sure that I have the legal right to distribute the code. I still have all the old contracts that I signed with MicroIllusions, and recently I have been working with a lawyer to try and clarify just exactly what my rights are. (For example, I recently uncovered documentary evidence that I came up with the basic ideas for Faery Tale Adventure a least a year before I started working with MicroIllusions, so it doesn’t fall under the legal definition of a “commisioned work”.)
Secondly, however, the source code is crap. I was very inexperienced when I wrote Music-X, and the code is full of ugly hacks and is hard to understand. It would be better to start over from scratch.