The collections of the Advocates Library, with the exception of its legal books and manuscripts, were given by the Advocates to the National Library of Scotland in 1925.

The complete four-volume set includes major essays and relevant discussions of the musical forms in The Hymnal 1982 which cover such topics as popular religious song, cultural diversity, the relationship between The Hymnal 1982 and the liturgies of The Book of Common Prayer, the development of service music in the Episcopal Church, hymn forms, and a brief history of Christian hymnody in the United States and Britain. In addition, complete information is given on all hymns and service music which includes the sources of text and music as well as biographical and technical facts. (2,949 pp)