Excellent additional sources of case study material

http://portfolio.reigate.ac.uk/view/view.php?id=7971

http://musicindustrysectionb.blogspot.co.uk/

http://www.musicweek.com/

http://www.bpi.co.uk/default.aspx

https://www.theguardian.com/business/musicindustry

http://www.hypebot.com/

http://www.sheffieldav.com/education/how-technology-transformed-music-industry

https://www.riaa.com/wp-content/uploads/2015/09/LabelsAtWork.pdf