My goal is that musicians get fairly paid for their work as opposed to making sure I am following every subtle licensing technicality in my own home, which is only an exercise in pedantry and accomplishes nothing practical for musicians.

I don't talk with the attorneys who create these complex licensing rules at Amazon, iTunes, etc. I talk to musicians. None of whom have ever had a problem with listening to their music with a small group of friends or family. The problem is with a platform that allows me to fire up a server and then invite thousands or millions of people to listen to someone's music for free.

Do you remember CDs, cassettes, records, etc.? Is it illegal to let family listen to those?