Guardian: UK record labels' revenue grows at fastest rate since 1995.
The disruption from digitisation is now a long established phenomenon in the music industry - the outdated chart below fails to distinguish the collapse of the digital download market, and its near-complete replacement by streaming.
You can see the enormous impact of digital disruption here:
Here's a calculator.
I tried the Astrid S example of the 47m streams of Such a Boy:
In this post I blogged on multi examples, including One Direction, a big mainstream pop band's estimated $50m from a hit album ($36m sales, $14m from streams) ... just a sixth of their $300m touring income over the same time period (2015), not counting merch! Revenue directly from music sales/streams is falling overall, though labels are finding new ways to keep their overall revenues up.
Here you can see the staggering difference in how many sales/streams it takes for an artist to earn $1,260, ie the US legal minimum (employers cannot pay any lower!) monthly wage, which of course they want more than!!! You need 1m Spotify streams, or 4m YouTube streams to earn this!!!