Nellymoser has introduced a Music Companion service for mobile operators looking to offer personalized music content and information to their subscribers.

According to the company, the Music Companion service filters large music catalogs into results that can be customized by the user -- such as by musical preference, location and so on. Data includes artist information, tour and venue details, and recommendations on similar artists.

Muze provides most of the news and information, while Nellymoser provides the systems that filter it.