This is not an artist, but appears here due to incorrectly tagged soundtracks. If this non-artist appears in your charts, do last.fm and yourself a favour. Fix your tags by putting the actual artist name in the artist field. The easiest is to use something like Picard. Ensemble Studios was a video game developer initially established in 1995 as an independent company, but was owned by Microsoft from 2001 to 2009, when it was officially disbanded. Read more on Last.fm