Besides references as above, there is the possible usefulness of title-entries (in the dictionary catalogue only), as
Maritana: opera. Wallace, W. V. n.d.
Bohemians, The: opera. Puccini, G. 1897
If the collection of music in a library is not sufficient to warrant the publication of a separate catalogue, it is desirable to embody in the dictionary catalogue a class-list of music under the heading "Music", treated as subject, although this is not strictly in accordance with the principles governing the compilation of such a catalogue. The entries under the heading would be sub-divided as required, in this way
Music.
Operas.
(Vocal scores, with pianof. accom.)
Puccini, G. The Bohemians. 1897
Wallace, W. V. Maritana. n.d.
Music and musical works fall logically into place as part of a classified catalogue, and are as readily dealt with there as in a separately published Catalogue of music. The two principal entries of the above operas are marked 782.1 (Music—Dramatic Music—Opera.)
When a library contains an extensive or comparatively large selection of music, there are sure to be included volumes of "albums," "gems," "selections," and other miscellaneous collections, which in the ordinary way are catalogued after this manner:—
Music.
Pianof. solos.
Klassiker-Perlen: Gems from the classics.
(Conservatoire ed.) Bk. 1. 4o n.d.
Bk. 1. Prelude, C major, by Bach. Largo, by
Handel. Gavotte, by Gluck. Träumerei, Warum?
and Summerlied, by Schumann. Nocturne, by Field.
The song of the lark, Chant sans paroles, and
Bacarolle, by Tschaikowsky. Moment musical and
Menuett, by Schubert. Melody in F, by Rubinstein.
Unless the contents of such volumes are at least set out as above they cannot be regarded as properly catalogued. If the library had any one of these pieces as a separate publication, it would, no doubt, receive individual treatment, and be dealt with in this way (to take the last item in the above book):—
Music.
Pianof. solos.
Rubinstein, Anton. Melody in F. (Op. 3,
no. 1.) n.d.
For this reason, when the number of books is large, and the separate catalogue, therefore, of considerable size, such miscellaneous collections should be dealt with ("indexed") as if each item were a separate work. If it is essential to index the contents of other books of a miscellaneous character, it is doubly necessary for miscellaneous music, more especially as it brings all the works of a composer together according to the nature of the compositions. If this course is pursued, then, as a counter-balancing economy, the contents need not be set forth under the principal entry, the separate "indexing" being sufficient, as