The Lowell Festival (allas Gerry Moshell pick-up) Orchestra has three of the best soloists in Cambridge: Lefkowitz, Ma, and Dabezies. They are playing Brahms and Schumann concertos. More than a bargain at $.50.

The Glee Club is singing at St. Paul's Church, where the acoustics should enhance Josquin and Brumel motets. Probably a concert for those familiar with the style. Kenneth Hoffman

DUNSTER LIBRARY

Roger Harmon, lutenist, in recital. Works of Dowland, Neusidler. Free. Friday, April 19, 5:30 p.m.

ELIOT LIBRARY

Viol Consort Music. Ruth Rubinow, Sarah Cunningham, and others. Free. Friday, April 19, 8:30 p.m.

LOWELL JCR

Lowell Festival Orchestra, Gerald Moshell, conducting. Brahms: Double Concerto for Violin and Cello (Ronan Lefkowitz, Yo-Yo Ma, soloists); Schumann: Piano Concerto (Marta Dabezies, soloist). Tickets: $.50. Friday, April 19, 8:30 p.m.

DUNSTER LIBRARY

John Chawluk, cello; Hugh Wolff, piano. Sonatas by Debussy, Beethoven, Bach. Free. Saturday, April 20, 5:30 p.m.

ELIOT LIBRARY

San Marco Brass Ensemble. Free. Saturday, April 20, 8:30 p.m.

HOLMES LIVING ROOM

Radcliffe Chamber Orchestra, David Evans, conducting. Mozart: Piano Concertos in B-flat and A (Paul Rosenbloom, soloist). Free. Saturday, April 20, 8:30 p.m.

DUNSTER LIBRARY