The Harvard–Radcliffe Collegium Musicum is a mixed chorus at Harvard University, composed of roughly 60 voices, drawing from both the undergraduate and graduate student populations. Founded in 1971 to coincide with the coeducational merger of Harvard and Radcliffe College, the group was originally intended to be a small chamber ensemble drawing from members of the Harvard Glee Club and the Radcliffe Choral Society. Its popularity, however, drove it to its current size, and along with the Glee Club and RCS it is now one of the Holden Choirs.
The Collegium performs music from the 15th century through the present, with an emphasis on Renaissance and Baroque music. Among the major concerted works it has performed are Bach's B Minor Mass, Monteverdi's Vespers of 1610, Mozart's C Minor Mass, and Bach's St. Matthew Passion. Collegium will perform Handel's Israel in Egypt on April 1 of 2011 and, in a joint concert with the Harvard Glee Club and the Radcliffe Society, it will sing both Beethoven's 9th Symphony and John Adams's "On the Transmigration of Souls". The Collegium has also gone on eight international tours, most recently to Australia in summer 2007.
Jameson Marvin directed The Collegium from 1978 to Spring 2010. The Collegium is currently under the direction of Andrew Clark, as well as Associate Conductors Kevin Leong and Christopher Walters. The Harvard–Radcliffe Collegium Musicum is a student-run organization led by Charlie Bridge (President) and Catie Williams (Manager).
In June 2011, The Collegium toured Germany and Austria performing in Berlin, Cologne, Frankfurt am Main (Hoch Conservatory), Munich, Salzburg, and Vienna.