2017 was a stellar year for the recorded music business. Global recorded music revenues reached $17.4 billion in 2017 in trade values, up from $16 billion in 2016, an annual growth rate of 8.5%. That $1.4 billion of growth puts the global total just below 2008 levels ($17.7 billion) meaning that the decline wrought through much of the last 10 years has been expunged. The recorded music business is locked firmly in growth mode, following nearly $1 billion growth in 2016.
Global Recorded Music Revenues Grew By $1.4 Billion in 2017
MiDIA - Music Industry Blog
Mark Mulligan