Which License -

While poking around at the freemusicarchive.org, I found this track by Johnny Ripper:  



I like that he described it as "audio content for visualizing scenes in your head."  The only restriction on its use is a request from the creator that if the song is used in a video, to please contact him first.  It is licensed under the Attribution-NonCommercial-ShareAlike License, and conveniently, if you use this somewhere, you can just copy and paste the code on the page in order to attribute.  Like this:

"at the sea by johnny_ripper is licensed under a Attribution-NonCommercial-ShareAlike License"

I imagine that the artist made this track (and all the others on the album) available for free in the hope that the music might inspire someone else to create a visual accompaniment.  Or that by listening to Johnny Ripper's music, a filmmaker might understand his own images more clearly, or be able to edit and arrange them in a new way.

I think that if I were to create something - an image, a piece of music, a video - I would use the same license as Johnny Ripper. In a nutshell, it is described as one that "lets others remix, tweak, and build upon your work non-commercially, as long as they credit you and license their new creations under the identical terms." That seems to open the door to encourage creativity without allowing anyone to make any money off the creation.