Something for everybody this week: more concerts than any other week all year. Best bet among the big programs; the HRO's concerto-contest winner (playing Liszt!) on Friday; and the Choir's Monteverdi Vespers on Sunday night. Both Eliot and Mather Houses are sponsoring first-rate chamber music. And even the Music Department is in on things: with a violinist who dares play Kreisler and Sarasate in Paine Hall! --Kenneth Hoffman

DUNSTER LIBRARY

David Garlock and George Loring, piano four hands. Works of Dvorak, Brahms, Mozart. Free. Friday, March 22, 5:30 p.m.

SANDERS THEATER

Harvard-Radcliffe Orchestra. Listz: Piano Concerto No. 1 (Richard Kogan, soloist); Beethoven: Symphony No. 2; Piston: Symphony No. 6. Tickets: $1.50 (students with ID: $1). Friday, March 22, 8:30 p.m.

DUNSTER LIBRARY

Twentieth century chamber music for flute, clarinet, viola, and piano. Works of Stravinsky, Messiaen, Carter, Waldstein. Free. Saturday, March 23, 5:30 p.m.

ADAMS LOWER COMMON ROOM

Barbara Shearer, pianist, in recital. Works of Berg, Beethoven, Chopin. Free. Saturday, March 23, 8 p.m.

KIRKLAND JCR

Oboe quartets of Mozart, Britten, Arnold (Particia Morehead, oboe); Bartok violin duets. Free. Saturday, March 23, 8:30 p.m.

MATHER DINING ROOM

Alexandria Quartet. Mozart Flute Quartets (in A and D); Beethoven: Serenade for Flute, Violin, Viola; Roussel: String Trio. Free. Sunday, March 24, 2:30 p.m.

MEMORIAL CHURCH

Harvard University Choir. Monteverdi: 1610 Vespers. Free. Sunday, March 24, 8 p.m.