Hot on the heels of his performances in Jonathan Dawe's opera Cracked Orlando here over the weekend (see Opera & musical theater), fast-rising countertenor Anthony Roth Costanzo presents a lecture-recital focusing on Italian castrati, those high-flying superstars of the 18th-century opera house. Seating is limited and reservations are required; to make yours, e-mail rw2115@columbia.edu.
