AVERY FISHER HALL:The New York Philharmonic is joined by the Brooklyn Youth Chorus for Puccini’s “Tosca” tomorrow at 8 p.m. and Tuesday and Thursday at 7:30 p.m., Lincoln Center, 132 W. 65th St.; (212) 875-5656.
SOUTH STREET SEAPORT: The Brooklyn Philharmonic performs John Adams’ “Shaker Loops” with a backdrop of fireworks, free tomorrow night at 8. South Street Seaport, Pier 17; (718) 488-5700.
CITY CENTER:The New York Gilbert & Sullivan Players perform “HMS Pinafore,” “The Pirates of Penzance,” “The Mikado” and “The Gondoliers” through Sunday. (For complete schedule, visit nygasp.org) 131 W. 55th St.; (212) 581-1212.