Classical Music in N.Y.C. This Weekend 

Source: The New York Times.

FURTHER COMPLICATIONS FESTIVAL at Spectrum (Sept. 8, 7 p.m.). There’s a double bill of pianists at this weeklong contemporary-music festival on Saturday evening.

HERE AND NOW SERIES at Bargemusic (Sept. 7, 8 p.m.). Here’s an early birthday party for the composer Ned Rorem, who turns 95 in October and has four works on this program.

RESONANT BODIES FESTIVAL at Roulette (Sept. 11-13, 7:30 p.m.). This indispensable series has become one of the city’s most important explorations of the voice since it began in 2013.