The European Commission is coming under increasing pressure to conduct a full antitrust investigation into a proposed $20 billion merger between Warner Music and the EMI Group. Composers from five Nordic countries have lodged formal objections with the commission against the venture. They believe Warner-EMI would control nearly 50% of all music publishing in Sweden and 70% in Finland.

Warner-EMI would be the world’s largest music company with combined revenues of $8 billion, 2,000 albums released annually, and more than 2 million song copyrights.