Government Works Works produced by the U.S. Federal government are not copyrighted. See here for more details. Catalog is in the PD, publications listed in the Catalog are usually in the public domain, although it would be a good idea to touch base with the publishing agency if planning to go commercial. S-COMMusicSamples.sit , a collection of 27 sample sounds. In Macintosh format.
Sounds demonstrate the possibilities of applying fractal and chaos technology to music composition.