iTunes and the long tail

• iTunes was the first digital distributor of songs to have sold over 25billion tracks. 
• Anderson “With no shelf space to pay for and, in the case of purely digital services like iTunes, no manufacturing costs and hardly any distribution fees, a miss sold is just another sale, with the same margins as a hit. A hit and a miss are on equal economic footing, both just entries in a database called up on demand, both equally worthy of being carried.”
• To dispute Anderson's theory- ' The top 1 per cent of artists – the likes of Rihanna and Adele accounted for a whopping 77 per cent of recorded music income in 2013, according to research by Mark Mulligan of Midia Consulting' (http://blogs.ft.com/tech-blog/2014/03/why-the-music-industrys-fat-head-is-eating-its-long-tail/)