The European Parliament continues to seek further scrutiny of the Sony BMG merger, although the major has since demerged and will officially be renamed Sony Music Entertainment in 2009.

EC Commissioner for competition Neelie Kroes has six weeks to provide a written explanation regarding competition in the music market.

Independent labels trade body Impala is also continuing its campaign against the merger and its appeal will be heard in Europe next year.

Impala objected to the buy-out of Bertelsmann's stake by Sony BMG, which was approved by the European Commission in September. However, Impala will not launch a new appeal over the buy-out, preferring to focus on the original merger ruling in response to the indies' concerns about market concentration.

Sony BMG declined to comment.