@georgem: No site exists like devtome for music, so nobody has earned DVC from it.

There are not enough admins for a music site.
It's not just that. For art and music in particular, free is not the same as open-source or at least the scale of licensing matters a lot. Open-source means being willing to relinquish the 'source'. Markm wrote about this in the past, that such forms might amount to the core or stepped design process as well as the finished article. So yes that requires people and expertise, but is also requires artists being willing to release the model, layers, components - source. To be able to broadly utilise open-source people have to be ablt to tweak it, change it, adjust it without necessarily going back to the originator. You can't do that with a complied or locked finality without having all the constituent bits that make up the ends. Music and art, musicians and artists, face this challenge. One step at a time...
Yes ok, but wait a minute. If I were to be a voice artist, willing to create copyright free (creative commons) voice samples , does open source in the broader sense mean that I have to give the world access to my vocal chords, so they can tweak my voice the way they like?Huh
At what point does this argument sound completely ridiculous?
I think a devtome for musicians would have to be about free music, meaning the artist has agreed to give the music away for free (well not really, he hopes to earn some DVC) and if available free transcriptions of the notes played (if composition, etc) but open source is not really valid at all with an artform like music, because the musician himself is the source, and he is not going to be able to share his body and spirit not even if he wanted to.
So maybe we shouldn't be so fixed on this definition of open source, because some artforms will simply not work with that definition anyway.
With CC BY-SA wouldn't that just mean that whatever music the artist posted could be remixed under those terms however someone wanted? And if the artist felt really inspired they could also post the ingredients to the track, such as samples, separate vocal tracks, transcripts, etc? I think some Jamendo (
) artists release under CC BY-SA.