Nicholas Slonimsky, noted Russianbern composer, conductor, and authority on modern music, will give a free public lecture in the Music Building at 8:15 o'clock next Friday night, on the subject "South American Composers." The lecture will be illustrated with musical selections.

Slonimsky recently completed the first comprehensive survey of contemporary composers of South America, an area little studied by musical scholars. He found that music had reached a high stage of development there, and that a great majority of composers write program music, taking their material from the histories and backgrounds and folk music of their native lands.