Olswang, Simpson Thacher & Bartlett and Slaughter and May took the lead roles on the £107m buyout of music publisher Chrysalis to BMG, a joint venture established two years ago between German media group Bertelsmann and US private equity house KKR.
Corporate partners Mark Bertram and Tony Waller led the Olswang team acting for Chrysalis on the sale.
Slaughters advised longstanding client Bertlesmann, with corporate partner Richard de Carle leading.
The Slaughters team also featured pensions partner Jonathan Fenn, Brussels competition partner John Boyce, real estate partner David Waterfield, IP partner David Ives and finance partner Philip Snell.
Simpson Thacher acted for KKR, with New York corporate partner Mark Pflug leading. Pflug and de Carle were involved in setting up the BMG joint venture in 2009.
The deal gave BMG the opportunity to raise $1bn (£640m) for new investments. The company, which will see the number of titles it manages rise to 325,000, has since made a number of acquisitions in the sector, although this transaction is its first UK public takeover.
Davenport Lyons media partner Michelle Brown advised BMG on the IP and music rights aspects of the deal. In the US Manatt was mandated on the equivalent role, with M&A partner Aydin Caginalp leading.