License question

[Paolo Gianrossi]

I was wondering under what kind of license one could release music (i mean
real songs, on a CD or something, not computer game music or the like).

It could be probably the GPL, but what is "source code" in music? MIDI?
WAV? SNG? paper scores? 

Thx for any help
paolino
-- 
... Observe Good Faith and Justice Toward All Nations, Cultivate Peace
and Harmony With All --George Washington's Farewell Address. 
-      	       	       	     
Paolo Gianrossi		     
1999s079 at educ.disi.unige.it 
paolino at linux.it   
linsky at wappi.com  
			     	       		     
Member of the GNU at DISI project.	      		     
Students Representative @ DISI, University of Genoa (ITALY)