While I was studying human factors engineering at Tufts University, I also made a lot of music in my spare time.
I was always hesitant to market or share my music because of the amount of work involved. Since then, I've found that releasing software under open source licenses is working well for me, and now I'm reconsidering the idea of making music again, using audio in the public domain or licensed under available creative commons licenses.
Free Sound Resources:
* http://freesound.iua.upf.edu/