Singers from the College Glee Club and the Radcliffe Choral Society will give their annual joint concerts at 8:15 p.m. tonight and tomorrow in Sanders Theatre.

Norton Professor of Poetry Paul Rindemith will be guest conductor for half the program. He will conduct four of his own works: "Frau Musica," a canon for the 85th birthday of Mrs. Elizabeth Sprague Coolidge, "Apparebit Repentina Dies," and "The Demon of the Gibbet." The audience will be requested to sing the canon for Mrs. Coolidge.

In the first half of the program, G. Wallace Woodworth '24, professor of Music, will present the "St. John Passion" of Reinrich Schultz in its first American performance outside of New York City. The work was composed in 1666 for the traditional Good Friday service.