About my interpretation of the law? Or that I would ever invite you to one of my barbecues?
I find your interpretation of the law doubtful. My house is still my house even if I have friends over. If I have a legal copy of the song I can play it without it being a "public performance" (unless I sell tickets.) I also doubt that someone blasting their car stereo while driving is considered a public performance, although they might be guilty of violating noise ordinances. (Has anyone ever been citied for violating noise ordinances wile playing Steely Dan?)