So it turns out there's actually very little public domain music available -- at least in the USA. Even those 100 year old scritchy-scratchy recordings aren't in the public domain. Here's an explanation why:


http://www.publicdomainsherpa.com/public-domain-sound-recordings.html


The author of this page has an excellent list of public domain recordings here:


http://www.publicdomainsherpa.com/public-domain-recordings.html


The few samples of public domain music & spoken word you see in this folder were largely retrieved from:


PUBLIC DOMAIN MUSIC:


http://en.wikipedia.org/wiki/Wikipedia:Sound/list


http://www.gutenberg.org/browse/categories/3


http://musopen.org/


http://us.metamath.org/mpegif/mmmusic.html


http://www.archive.org/details/audio


archive.org public domain:

http://www.archive.org/search.php?query=description%3A%28public%20domain%29%20AND%20mediatype%3A%28Audio%29


http://memory.loc.gov/ammem/browse/ListSome.php?format=Sound+Recording



PUBLIC DOMAIN SPOKEN WORD:


The George W. Bush Public Domain Audio Archive


LibriVox


Oyez: US Supreme Court Media


Project Gutenberg audio books


World English Bible audio