I actually did this last week with my husband who is a DJ and budding music producer. I started the conversation by asking him under what license he released his work on Soundcloud and other platforms.
Licensing of creative works not an issue he had previously given much thought to concerning his own productions. What he keeps having to consider and work around is copyright on music he wants to include in mixes for example.
It turns out that he did not know that there was an implied copyright attached to the work he's been sharing online. We then discussed what he wishes for other people to do with his creations and he decided on the most open license, CC BY.
Reasons for this choice:
* He wants his fans to play the music, download and share it.
* He hopes other music producers will get inspired to build up on his creations
* He does not intend to make money off the music he produces. He earns a living from live shows and makes music for the love of it.
We haven't resolved the issue of whether to include Share Alike to ensure that the music remains openly licensed. Could it happen that someone reuses the work and then claims copyright for part of it, thus preventing others from using even the initial work?