Content provider Mr. Master has appointed Maria Musaitef as Marketing Director. It’s a newly created position at the company. Musaitef joins Mr. Master from Envisage Radio Group, where she helped launch the company as Director, Affiliate Sales and Marketing, and brought in 90 affiliates for Sammy Hagar’s Top Rock Countdown in the show’s first year. Prior to that, Musaitef was Western U.S. Region Account Manager for Radio Media.