> absent copyright and its enforcement, how do you ensure that "the people who really create the music" get paid for their creations, so that they keep creating?
Those are actually two separate questions.
0) How do you ensure the original creators get paid?
1) How do you ensure that the original creators keep creating?
Arguably, question 1) is much more important than 0), as 0) is intended as an inducement toward goal 1). It's also intended as an inducement toward a goal you've not stated, which is
2) How do we ensure more people become creators?
and the ultimate question, which is the complete thrust of everything which is
A) How do we promote the Progress of Science and useful Arts?
i.e. how do we encourage people to make new, easily copied works of art and discoveries, and particularly how do we encourage people to reveal the magic sauce to continue scientific and technological advancement?
Everything we've discussed is for A), which has perhaps familiar phrasing.