Correspondence, manuscripts, papers, essays, etc. relating to Berlioz, and 19th century arts and literature. The correspondence includes original Berlioz letters and over 200 copies of letters relating to Berlioz and the romantic era, written by musicians, critics, historians, and literateurs of the past century. There are many photostats of letters and manuscripts obtained from the principal libraries of the world which hold original Berlioz material. The collection includes much printed material in the form of music scores, published letters, essays, clippings, biographies, music and book catalogues, program notes, and playbills.

The original compositions of Solomon Pimsleur, consisting of over 100 sonatas, suites, etudes, and songs for piano, orchestra and voice. Also included are Pimsleur's arrangements of various musical works, and photodisks and tapes of Pimsleur performing his own works; there are also a few periodical and monograph publications which the composer used as bases for some of his work