THE MARATHON OF MAKING ART A process piece that asks as much of the audience as the ensemble Perhaps the title of Nazareth Hassan's new play Practice, which opened at Playwrights Horizons tonight, was inspired by the old joke: "How do you get to Carnegie Hall? Practice, practice, practice." Fittingly enough, the play follows a… The post Off-Broadway Review: PRACTICE (Playwrights Horizon) appeared first on Stage and…