Big Three Sony Universal Warners

In film its the big six (7 if you count Lionsgate); in the music industry, following a controversial 2012 $2bn takeover of EMI by Universal, its just the big three: Sony Music Entertainment, Warner Music Group, and Universal Music Group. Sony and Universal also combine on the VEVO platform.

See: thebalance.com feature on the big 3; musicbusinessworldwide.com (the spin on this one is a bit odd - that the ENTIRE Indie industry beats any one of the big three individually); digitalmusicnews.com; this pdf.

Table from digitalmusicnews.

You can see how the industry has gone through dramatic 'disruption' from digitisation - but with little impact on the market share of the dominant conglomerates:

Source: p.11 of this report (pdf).