Rhythm X, Inc. is a non-profit music education organization that operates a competitive indoor marching percussion ensemble and wind ensemble, as well as an online school for marching music called The X Academy. The company was founded in 2002 by Craig Dunn as the Rhythm X Performance Ensemble. The ensembles compete in both the Winter Guard International (WGI) and Mid-East Performance Association (MEPA) circuits in the World Class, which is the classification given to the ensembles that execute musical and visual programs of the highest difficulty. In 2013, Rhythm X announced the launch of The X Academy, an online and in-person educational program suited for high school and college-age musicians interested in competitive percussion and wind ensembles. Later that year the organization announced the addition of its newest ensemble that will compete in the new WGI Winds Division in 2015.