drew Roberts has some spoken word works under the Creative Commons Attribution-ShareAlike license.
They can be found here: some of drew's stuff
Some people have made some music using some of these - look here for the music.
Loca Records releases all music on the label as CC-BY-SA (though there are some older works that are EFF Open Audio and GPL'd). Loca Records Website
The quick way into their downloads is Loca Music as MP3/Ogg
Scores and resources
The Choral Public Domain Library is a great resource for choral scores, texts, and translations, in a variety of formats.
The Mutopia Project contains classical scores under the CC-BY and CC-BY-SA license as well as public domain.
Sharing of free audio
- Theora Sea for works in open media. Also includes Free Cultural Works.
- RedPanal.com Online community/Social Network about Collaborative Music & Collective Musical Creation. Free CC-by-2.5(Ar.) licensed audio recordings and free Cultural Works.
- Jamendo.com is the world's #1 platform for free and legal music downloads. Available in seven languages, it offers the largest catalog of music under Creative Commons licenses. For artists, it's an easy and efficient way to publish, share and promote their music, and also to make money, through ad revenue sharing and commercial partnerships.