19. The computer-readable storage medium of claim 17 , wherein the set of music elements identify components of the music contribution at multiple time intervals within the music contribution.
17. A computer-readable storage medium having a computer-readable program embodied therein for directing operation of a portal for processing of music contributions over a network including a collaboration unit, the collaboration unit including an editing unit, an output generation unit, and a network interface unit, the computer-readable program including computer executable instructions for collaborative handling of a music contribution in accordance with the following: receiving a music contribution at a portal, the music contribution comprising a set of music elements and the portal being accessible over the network; and generating music output at the portal relating to at least a portion of the music contribution and in response to at least one collaboration request received at the portal over the network; wherein the at least one collaboration request relates to the set of music elements; and wherein at least one music element of the set of music elements is generated by deconstructing at least a portion of the music contribution.