Contains recordings on audio cassettes of various viola performances and congresses, collected by Karen Tuttle. Some unidentified. Materials dated approximately 1950 to 1997.

Contains various scores for the viola, collected, annotated by or written by Karen Tuttle. Dated approximately 1720 to 1999. Original versions of compositions are included in the date range. Some is commercially produced music and others are handwritten music manuscripts.

Personal papers of Karen Tuttle, including employment agreements with the Curtis Institute of Music and The Julliard School, handwritten notes (including a notebook), a copy of "Beethoven: Music & the Cosmos" by Alexander Lowen, some biographical sketches of Tuttle, and clippings. Materials dated 1940s to 2001.

Programs, clippings, fliers, press releases, and other materials on music performances, most of which Karen Tuttle is part of. Materials dated 1948 to 1980.

Contains letters to and from students, including letters of recommendation Karen Tuttle wrote for students, and materials used for or about pedagogy, such as clippings, notes, and publications. Materials dated 1961 to 2007.

Contains the personal papers of Karen Tuttle, including letters, notes, agreements, publications, clippings, photographs, and negatives. Materials dated 1940s to 2001.

Collection contains viola parts and repair equipment, promotional material, correspondence, newspaper clippings, and research in music therapy, manuscript scores, programs, and other materials concerning his time as a music professor and professional violinist, 1934-1997.

Contains professional papers of violist Thomas Tatton, including correspondence with violists and music printing companies, research on violist and composer Kenneth Harding, and papers on the North American Viola Congress, American Viola Society, and the International Viola Society. Materials dated 1972-2010.

Contains the personal papers of violist Karen Tuttle, including music scores, recordings of viola performances, concert programs, and personal documents. Also contains materials related to Karen's work in viola pedagogy, including letters to students, clippings, notes, and publications. Materials dated approximately 1720 to 2007. Earlier dated materials are part of the scores series, and are facsmiles. The bullk of the materials are dated 1940-2007.

Collection contains photographs, original drawings and paintings, concert programs, newspaper clippings and scrapbooks, awards, posters of concerts, CDs of Vardi's performances, and other material relating to the life and career of Emanuel Vardi, 1941-2005.