Classical Music Listings From The New York Times

Source: The New York Times.

Iancu Dumitrescu (Saturday) Born in 1944 in Romania, the composer Iancu Dumitrescu has been a leading figure in Eastern European contemporary music, long associated with the spectral style of composition. He is less well known in America, which makes this Composer Portraits program at the Miller Theater, featuring the excellent ensemble Either/Or, so timely. Saturday at 8 p.m., Miller Theater, Broadway at 116th Street, Morningside Heights, 212-854-7799, millertheatre.com. (Tommasini)

Jon Gillock (Tuesday) The eminent organist Jon Gillock, a friend and disciple of Messiaen, continues this series devoted to the organ works of that towering French composer as part of the acclaimed Ascension Organ Series. The next program includes the “Diptyque” and “Les Corps Glorieux.” At 8 p.m., Church of the Ascension, Fifth Avenue at 10th Street, 212-358-7060, voicesofascension.org. (Tommasini)

Alvin Singleton (Thursday) A celebration for this composer features chamber and solo pieces, including the American premiere of “Argoru IV,” with the violist Stephanie Griffin. At 8 p.m., Roulette, 509 Atlantic Avenue, Brooklyn, 917-267-0363, roulette.org. (Allen)