MTed, this is very interesting. I didn't know what thread you were talkng about until Spaw named it in the other thread, which I've been reading only, until now. I didn't get it form the name of thread, sorry, I just thoguht it was about Bono's copyrights, only.
I don't know if there are any easy answers. I came to the Mudcat having spent 20 years promoting classical music which was fiercely protected by copyrights and me. I knew about public domain, but never totally understood the giving of folk music until I met a few Venerable Ones here and was reminded that music can be shared without being jealously guarded.
However, I also see the point of a composer whose stuff may hit big with a soundtrack, big name release etc. They deserve to make money from it and to have their rights to it protected for at least their lifetime. I also feel that way as a writer.
Tangled webs, conundrums, and we need a balance scale of metaphysical proportions to figure it all out.
Thanks, MTed for starting this thread.