The number one source of growth by far: on-demand streaming from services like YouTube, Spotify, Apple Music, and TIDAL. Digital revenues overtook revenues from physical products (mainly CDs) in 2011, but streaming accounted for only 18% of digital revenues. By 2015, streaming had drawn even with downloads and together accounted for more than two-thirds of total industry revenue. Last year, streaming by itself became the biggest source of recorded music revenue, accounting for just over half (51%) of total industry revenues. On the physical product side, CDs also accelerated their decline and now account for only 15% of industry revenues.

Source: Forbes April 01, 2017 15:06 UTC