Emerson Stage premieres its annual modern dance festival, X Dance, at the Greene Theater tonight. The show features the work of student choreographers Kaitlyn Frank, Gabriel Nesser, Olivia Moriarty, Cassie Schauble, and Cassie Samuels, accompanied by 26 dancers from a broad range of majors. EmStage uses X Dance to celebrate the creativity and versatility of Emerson students and is one of the few shows that invites non-performing arts majors to participate. With everything from modern dance to ballet, Latin, and ballroom styles, the numbers are both physically and musically diverse in their storytelling.