After 14 years as a dancer with the Mark Morris Dance Group, John Heginbotham founded his own company in 2011 and quickly collected fans for his wit, refreshing physical strangeness and canny musical collaborations. The company's Joyce debut, performed to live music, includes "Angels' Share," originally set on the Atlanta Ballet, the solo "Diamond" and "Easy Win," in which Mr. Heginbotham and the jazz pianist Ethan Iverson honor and skewer the rituals of ballet class.