Former chief to consult for Time Warner.

Former Warner Music Group chairman/CEO Roger Ames is ending his relationship with the company, Billboard.biz has learned.

Ames -- who has been serving in a consulting role for the major since it was sold by Time Warner to a private investor group led by current WMG boss Edgar Bronfman Jr. -- is moving on to serve as a consultant to former employer Time Warner.

In a staff memo, obtained by Billboard.biz, Bronfman praises Ames with navigating the company "through some of the most challenging times our industry has faced" over his five-year run as chief executive.

He credits Ames with orchestrating the restructuring of the company ahead of its sale, serving a critical role in the transition of ownership and playing a key figure in the industry's support of iTunes and other digital music services.

What's next for Ames remains to be seen. Published reports earlier this month suggested that he could ultimately end up in a top role at the new Sony BMG.

Ames was not available for comment.