I've spent some time looking for a license that
excludes
expectation of royalty payments for public performances and so far
none exist.
Try this:
http://mondodesigno.com/music/pml.html
For commercial use, you have to ask permission of the artist (this
could be through a representative of course). It's then up to the
artist if they want to charge a royalty or not.
Cheers
Daniel