Philadelphia Orchestra, with Charles Dutoit, at the Academy of Music, Broad and Locust Streets, at 2 p.m. today and 8 p.m. tomorrow. Tickets: $10-$56; $2.50 amphitheater seats on sale one hour before concerts. Phone: 893-1999.
NEXUS. Several new-music events in the area this weekend begin tonight with the outstanding Canadian percussion ensemble Nexus, whose program includes Steve Reich's mellifluous Music for Pieces of Wood and Toru Takemitsu's Debussy-like Rain Tree (for vibraphone, two marimbas and crotales). John Cage's Third Construction, which also will be performed, is a work of much subtlety and scintillation.
Nexus at the Glassboro Center for the Arts, Wilson Concert Hall, Glassboro, at 8 tonight. Tickets: $10. Phone: 609-863-7388.
TEMPLE UNIVERSITY CONCERT CHOIR AND CHAMBER ORCHESTRA. Hagoromo, a recent work by Robert Moran, Philadelphia's resident minimalist, has enjoyed a number of performances. Last season, it made its New York debut. Tomorrow, Hagoromo heads for Montgomery County Community College. On Sunday, you can hear this joyous exploration of Japanese myth for choral and instrumental voices in Center City's Church of the Holy Trinity. Conductor Alan Harler will preface it with Bach's Magnificat.
Temple University Concert Choir & Chamber Orchestra at Montgomery County Community College, DeKalb Pike and Morris Rd, Blue Bell, at 8 p.m. tomorrow. Tickets: $5. Phone: 787-8304. * Also at Church of the Holy Trinity, 19th and Walnut Streets, at 4 p.m. Sunday. Free. Phone: 787-8304.
NEW MUSIC FOR KEYBOARDS. The pianists are Sylvia Glickman, James Primosch and David Holzman; the music is by Glickman, Peter Maxwell Davies and George Crumb, among others.
New Music for Keyboards, at the Philadelphia Art Alliance, 251 S 18th St. Phone: 848-7647. Tickets: $8; $5 students & Alliance members. 8 tonight.