It’s unusual for a composer to debut his first opera at the age of 82.
Then again, Harry Bialor is an unusual composer. His opera, “Masada,” is having its world premiere March 23 at the JCC of Staten Island (1466 Manor Rd. 718 475-5200) as part of a UJA-Federation of New York-funded Jewish Music Month program. The piece will be performed by Voyces and Young Voyces, two S.I.-based ensembles, conducted by Michael Sirotta and accompanied by pianist Mimi Stern-Wolfe.