With Paganini Competition winner Lynn Chang graduating in June, the Kogan/Chang/Ma trio will give its final Harvard performance this Saturday with the Bach Society. They will pit their formidable technical and musical skills against the Beethoven Triple Concerto, known affectionately as the Cripple Concerto because of the tremendous demands it makes upon the soloists. Stravinsky's marvelous Pulcinella Suite will also be on the program.

Friday:

Works of Haydn, Schubert, Bartok, and Liazt; Ann Johns, plano; Kirkland JCR; 8:30 p.m.

Vocal works of Schumann, Mozart, and Faure; Eric Johnson, baritone, and Keith Cheng, piano; Eliot Library; 8:30 p.m.

Saturday:

Bach Brandenburg Concerto #3, Stravinsky, Puicinella Suite, Astrous, a new work by John Thow, and Beethoven's Triple Concerto; Bach Society Orchestra, Hugh Wolff, conductor, Richard Kogan, piano, Lynn Chang, violin, and Yo-Yo Ma, cello; Sanders; 8:30 p.m.

Works of Schutz, Faure, Handel, and Schubert; Pat Pastore, soprano, and Lenora McCroskey, harpsichord and piano; Eliot Library; 8:30 p.m.

Sunday:

An Evening of German Song; Works by Brahma, Bach, Mahier, Schubert, and Schumann; Tung Soo Chung, tenor, Jeff Zax, baritone, Peter Ives, bass, John Major, guitar, and the unique Luise Vosgerchian, piano; Mather Dining Hall 8:00 p.m.

Mozart's Dissonant Quartet, and Dvorak's American Quartet; Cabot Living Room; 3:00 p.m.

Vivaldi's Four Seasons; I Solisti di Mather; Mather Courtyard; 2:00 p.m.

An open choral sight-reading of Requiems by Mozart and Faure. F. John Adams, conductor, Leverett JCR, 4:00 p.m.

A lecture-recital of art songs by women composers, from the Renaissance to the 20th Century. Nancy Ackerman soprano and Kathryn Lemmel piano. Holmes Living Room 8:30 p.m.

Wednesday

An all-Bach program; The Cantata Singers, Phillip Kelsey, conductor; Sanders; 8:30 p.m.