The current environment in the Music Industry is quite different to the 'old days'. According to the RIAA : 150 streams of a song equals one paid download. Ten paid downloads equates to an album download. An artist’s music will have to be streamed on any of the services (Spotify, YouTube, etc) 1,500 times for an album “sale” to be counted. One artist who had a hit (1 million plays in 4 months) earned 0.02 Euro cents per play, he was paid 2,300 Euros (US$3,200) before tax. One calculation is it takes 279 plays on Spotify, or 776 on YouTube, to make $1. This isn't pessimistic, though. Music consumption is growing massively, so 1,500 streams = album sale is probably a bit low in reality.