Most bands that start in a college dorm room don’t last past graduation. Not Rainbow Kitten Surprise. The group came close to calling it quits, but its willingness to evolve has kept it going for well over a decade. Leading up to the new album “Love Hate Music Box,” R-K-S underwent profound change. Senior music writer Jewly Hight reports it’s the band’s first project since singer Ela Melo transitioned ... and imagined new musical possibilities for the group.