Pianist performs works by Mozart in 10-week "a la carte aural festival" at Trinity Church, B'way (Wall St.), 212-602-0747; 1, free.
New York Choral Society
John Daly Goodwin conducts Brahms' Requiem in first of 10-week series, 2000 Summer Sings; CAMI Hall, 165 W. 57th St. (7th Ave.), 212-247-3878; 7:30, $9.
Brooklyn Philharmonic Orchestra
Bridget Reischl conducts works by Rossini & Sousa; Prospect Park Bandshell (Prospect Park W. & 9th St.), Bklyn., 212-719-9570; 7:30, free.
St. Bartholomew's Choir
Organist William Trafka conducts Vaughan Williams' Mass in G Major in second of summer series feat. sacred music; St. Bartholomew's Church, 109 E. 50th St. (Park Ave.), 212-378-0248; 11 a.m., contrib.
Asko Ensemble/Schönberg Ensemble
Reinbert de Leeuw conducts Dutch composer Louis Andriessen's opera Writing To Vermeer; NY State Theater, 20 Lincoln Center, B'way (64th St.), 212-870-5570; 8, $15-$85 [continues Thurs.-Sat.].
Bang On A Can
"Downtown New Music Collective" performs works by Steve Reich at Cooper-Hewitt Museum, 2 E. 91st St. (5th Ave.), 212-849-8380; 6:30, free.
Festival Baroque Band
Harpsichordist Kenneth Cooper conducts works by Bach feat. soloists Marjorie Bagley, Claire Jolivet & Calvin Wiersma; Washington Sq. Park, 5th Ave. (Washington Sq. N.), 212-431-1088; 8, free.
Robert Bass conducts Verdi's Requiem, part of 10-week 2000 Summer Sings series; CAMI Hall, 165 W. 57th St. (7th Ave.), 212-247-3878; 7:30, $9.
New York Philharmonic
Hans Vonk conducts Messiaen's Éclairs Sur L'au-Delà; Avery Fisher Hall, 10 Lincoln Center Plaza, B'way (64th St.), 212-721-6500; 8:30, $25-$35.
Violinist performs works by Beethoven, Ravel, Pärt & Paganini w/pianist Sonya Ovrutsky; Continental Center, 180 Maiden Ln. (Front St.), 212-799-5000 ext.313; 12:30, free.