“For a cadre of top composers, the action isn’t in film but video games. Djawadi’s score for ‘Medal of Honor: Warfighter,’ for instance, boasts 100 minutes of music, much of it downright experimental by film composition standards. It’s alternately symphonic, electronic and rock ‘n’ roll, and it’s emblematic of an industry that’s providing room to roam for those used to scoring to picture.”