A nice article from the IEA magazine about the economics of the music industry and has changed it over the last two centuries. There are bits about the labour market, innovation and pricing. I'm not sure I'd write a lesson about it but it's quite an accessible bit of extra reading for even students at the lower end to practice reading and reporting back, and needs very little prior knowledge so could work well at the start of the course when you are trying to get students into the habit of wider reading.
Find it here