MUSIC (M)
MUSIC LITERATURE AND/OR MUSIC THEORY (ML)
MUSIC THEORY AND PEDAGOGY (MT)
M - Scores/instrumental music/vocal music
2-2.3 Collections of musical sources
3-3.1 Collected works of individual composers
6-175 Solo instruments
177-990 Music for two or more solo instruments
180-298.5 Duets
300-386 Trios
400-486 Quartets
500-586 Quintets
600-686 Sextets
700-786 Septets
800-886 Octets
900-986 Nonets and larger combinations of chamber music
990 Chamber music for instruments of the 18th century and earlier
1000-1075 Orchestra
1100-1160 String orchestra
1200-1269 Band
1366 Jazz ensembles
1376-1420 Instrumental music for children
1473 Electronic music
1497-1998 Secular vocal music
1500-1527 Dramatic music (including operas and musicals)
1611-1624 Songs for one voice
1627-1853 National music
1990-1998 Secular music for children
1999-2199 Sacred vocal music
2000-2007 Oratorios
2101-2114 Songs for one voice
2115-2146 Hymnals
ML - Music literature/theory
8-54 Librettos (texts for music)
100-109 Dictionaries and encyclopedias
115-158 Biblography
159-3795 History and criticism
385-429 Biography
430-455 Composition
460-1354 Instruments and instrumental music
1100-1165 Chamber music (sacred and secular)
1200-1270 Orchestral music
1300-1354 Band music
1400-3275 Vocal music
1500-1554 Choral music (sacred and secular)
1600-2862 Secular vocal music
2900-3197 Sacred vocal music
3400-3465 Dance music
3545-3776 National music
3800-3923 Philosophy and physics of music
MT - Music instruction and study including composition and orchestration
5-1459 Instrumental music
6-175 One instrument without accompaniment
40-67 Composition
68 Improvisation
70-86 Orchestra and orchestration/conducting
90-145 Analytical guides
170-810 Instrumental techniques
177-986 Two or more solo instruments
820-949 Singing and voice culture
955-960 Production of operas/Music in theaters
1000-1356 Orchestral music
1495-2199 Vocal music
1497-1998 Secular vocal music
1500-1527 Dramatic music
1530-1610 Choral music/part songs
1611-1626 Songs for one voice
1627-1985 Songs (part and solo)
1627-1853 National music
1999-2199 Sacred vocal music
2000-2017 Oratorios, masses, services
2018-2101 Cantatas, anthems, part songs
2102-2114 Songs for one voice
2115-2146 Hymn, psalm and choral books
2147-2188 Liturgy and ritual
2198-2199 Temperance, revival, and gospel songs