I did some experiments in 1997 with using fractals to make computer generated music. The album is called "Fractalus" and is freely available.
I've written extensively in my myspace blog on how it was produced and my thoughts on the experiments. The computed music was not restricted to fractal algorithms but instead used it in the variation of the note selection. From my experiments with various mathematical algorithms for creating music i found that the fractals did make the compositions a lot more interesting. And am still quite pleased with the results.

About Details

You can listen, download and read about it here:
http://www.myspace.com/saquedon

Alternate download page on my fractal blog "Fractuality":
http://fractuality.wordpress.com/music/

You can also play the tracks on Last.fm:
http://www.last.fm/music/Saquedon/Fractalus

Musicvideo containing one of the fractal music tracks called "Lau 19301296":

<a href="http://www.youtube.com/v/E0bW78VX7Hk&rel=1" target="_blank">http://www.youtube.com/v/E0bW78VX7Hk&rel=1</a>