Abstract Collection of sheet music, correspondence, photographs, programs, advertisements, reviews, and notes belonging to the Danish-born Chicago composer and teacher Thorvald Otterström. Sheet music includes Otterström's original published compositions, manuscripts, and notes, in addition to works that he arranged and ghostwrote for his contemporary composers. Photographs include portraits from 1910 until his death 1942. Otterström's correspondence regarding art, philosophy, music, and literature...