Who will get Warner Music Group?

It's fairly unusual for a big media company transaction to be conducted by auction.
Now, at least five buyer groups have been told that they're through to the second round.
Among those still in the bidding process for some or all of Warner Music Group (WMG) are several private investment groups, Sony Music, and BMG Music Publishing.  Sony already has about 28% market share (both music and publishing), which might trigger anti-trust review..

Source: "Will Sony Team With BMG to Buy Warner Music Group?"  All Access.