Page 125 - DLIS002_KNOWLEDGE ORGANIZATION CLASSIFICATION AND CATALOGUING THEORY

Knowledge Organization: Classification and Cataloguing Theory

Notes M1247.9 = a collection of dances for band
The class numbers for dances are further subdivided according to two-rhythm (polka, etc.) and
three-rhythm (waltz, etc.):

M1048 = an individual two-rhythm dance or a collection of two-rhythm dances for orchestra
M1148 = an individual two-rhythm dance or a collection of two-rhythm dances for string
orchestra

M1248 = an individual two-rhythm dance or a collection of two-rhythm dances for band
M1049 = an individual three-rhythm dance or a collection of three-rhythm dances for
orchestra

M1149 = an individual three-rhythm dance or a collection of three-rhythm dances for
string orchestra

M1249 = an individual three-rhythm dance or a collection of three-rhythm dances for band
6.4.4 Classifying Works with Keyboard

Piano, etc.: “Unless specific classes are otherwise available, the term is meant to include
harpsichord, clavichord, virginal, and similar keyboard instruments whose strings are
plucked or struck.”

Continuo: “Class works with continuo parts as if the continuo were played by one, not
two, performers, and, in general, as if the chordal portion of the continuo part were for
piano (harpsichord, etc.)”
Studies and exercises: Pedagogical works (with or without accompaniment): class in MT
studies and exercises
Concert works: class concert works titled “studies” by medium of performance in class M.

6.4.5 Class Numbers for Vocal Music

Class numbers for vocal music tend to emphasis the accompaniment and are less easy to remember.
Secular and sacred works of the same type and for the same medium of performance are classed
in different class numbers. For example, a secular song for voice and orchestra is classed in
M1613 and a sacred song for voice and orchestra in M2103. There is no pattern like M1613/M2113
or M1619/M2119 in the class schedule, making it difficult to memorize the class numbers. Some
limitations of Class M are:
The schedule is inconsistent in the level of detail.
Many classes are subdivided in detail. For example, the class numbers for music organ
(M6-M14), piano (M20-M39), violin and piano (M217-M223), violoncello and piano (M229-
M236), and orchestra (M1000/M1075) are further subdivided by type of composition (suite,
sonata, symphony, etc.)

Other class numbers are so general that a wide variety of works are classed in it. For
example, see the class numbers M298 and 298.5 and M385, M485, M685, etc. and M386,
M486, M586, etc. Most works that include percussion are classed in one of these class
numbers, because percussion is not covered elsewhere in the schedule.

Still other class numbers are in-between highly detailed and not detailed enough. For
example, all music for two wind instruments, original or arranged, are classed in just two
class numbers: M288 (collections) and M289 (separate works).

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