The collection contains programs and reviews of Portland Junior Symphony and Portland Youth Philharmonic concerts, including programs from the orchestra’s international tours. Personal papers of Jacob Avshalomov include correspondence, clippings, programs, certificates, photographs, and memoirs, relating mostly to his musical career, as well as those of his sons, David and Daniel, and his Russian-born father Aaron. Publications include musical scores, including collaborative works with his wife, Doris Avshalomov, writings on American music and the Portland Youth Philharmonic, and manuscripts for his published memoir, "Avshalomov’s Winding Way."