Russian emigre Len Blavatnik has emerged as the leading bidder for Warner Music Group, which put itself up for sale in January, said three people with knowledge of the situation. A sale to Blavatnik’s Access Industries Holdings for $3 billion or more would end a three-month auction whose finalists include private-equity brothers Tom and Alec Gores and Sony/ATV Music Publishing. Rival bidders may yet revise their […]