A monthlong run at Joyce SoHo — or anywhere, really — is practically unheard of for dance-theater artists in New York. But this is a special occasion: David Gordon’s 50th year as an influential maker of category-defying performance. Known for his mischievous, perceptive wit, Mr. Gordon continues conversing with deceased writers (Ionesco, Brecht and Shakespeare have been recent inspirations) in “Beginning of the End of the…,” generated from three works by the Italian author Luigi Pirandello. The stellar cast — with the veteran performers Gus Solomons Jr., Valda Setterfield and Mr. Gordon himself — is reason enough to go.  — Siobhan Burke