Development of Creative Commons licenses

[Chris Morris <chrismo AT clabs.org>]

http://creativecommons.org/weblog/entry/5026

Glenn says, "be sure to license both the composition and the recording, 
if you're able to, so that your fans know they can make the most of both 
aspects of your stuff without legal woes."

I'd used the Open Audio License 1.0 for quite a while before Creative 
Commons, and it was my understanding that this license automatically 
covered the composition and recording. OAL 2.0 is now a CC license -- so 
is there a way to license just one or the other (composition and recording)?

--
Chris
http://clabs.org