This microfilm set includes sheet music from the Music Division of the New York Public Library. The works included are described as miscellaneous instrumental and vocal works published in the United States between 1769 and 1830, including original compositions and arrangements in both art and popular styles. The pieces are chiefly for solo piano and songs in English with piano accompaniment. The collection is arranged in two segments, instrumental works and vocal works; within each section, pieces are arranged alphabetically by composer. Each reel contains an index for items on the reel. Reel 23 is a comprehensive index to the collection: this is New York Public Library's card index, annotated with the reel and frame numbers for items that appear in the microfilm set. The works in the collection are listed in two bibliographies: Sonneck, Oscar George Theodore, 1873-1928. Bibliography of early secular American music. Wolfe, Richard J. Secular music in America, 1801-1825; a bibliography.