| | 780 | music |  |
| ↑ | 780 | music in general |  → 016.78 |   |
| ↑ | 780.02 | music and religion | | |
| ↑ | 780.03 | music and society | | |
| ↑ | 780.061 | music and medicine | → 610 | |
| ↑ | 780.07 | music and arts | | |
| ↑ | 780.0791 | music and cinema | | |
| ↑ | 780.08 | music and literature | | |
| ↑ | 780.1 | music theory | | |
| ↑ | 780.14 | music language and communication | | |
| ↑ | 780.148 | music notation | | |
| ↑ | 780.149 | music editing and publication | | |
| ↑ | 780.26 | scores and texts | → 016.78026 | |
| ↑ | 780.262 | music manuscripts | → 016.780262 | |
| ↑ | 780.285 | music computing | | |
| ↑ | 780.3 | music dictionaries | | |
| ↑ | 780.6 | music organizations | | |
| ↑ | 780.7 | music education | | |
| ↑ | 780.76 | handbooks, examinations | | |
| ↑ | 780.77 | music pedagogy | | |
| ↑ | 780.8 | social groups in music | | |
| ↑ | 780.82 | women in music | | |
| ↑ | 780.89 | ethnomusicology | | |
| ↑ | 780.9 | music history | → 709 | |
| ↑ | 780.902 | music in the Middle Ages | → 781.0902 | |
| ↑ | 780.903 | music in the Modern Age | → 780.9450903 781.0903 | |
| ↑ | 780.9031 | music 1450 to 1599 | → 781.09031 | |
| ↑ | 780.9032 | music 1600 to 1750 | → 782.109032 | |
| ↑ | 780.9033 | music 1750 to 1825 | → 781.1709033 | |
| ↑ | 780.9034 | music 1825 to 1899 | → 782.109034 | |
| ↑ | 780.904 | music in 20th century | → 780.9450904 781.0904 782.10904 | |
| ↑ | 780.92 | musicians [all ↓] | → 016.78092 709.2 781.710092 782.0092 | |
| ↑ | 780.92.BAC | Bach | | |
| ↑ | 780.92.BAR | Bartók | | |
| ↑ | 780.92.BEE | Beethoven | | |
| ↑ | 780.92.BOC | Boccherini | | |
| ↑ | 780.92.BRA | Brahms | | |
| ↑ | 780.92.BRI | Britten | | |
| ↑ | 780.92.BRU | Bruckner | | |
| ↑ | 780.92.CAG | Cage | | |
| ↑ | 780.92.CAJ | Cajkovskij | | |
| ↑ | 780.92.DAL | Dallapiccola | | |
| ↑ | 780.92.DEB | Debussy | | |
| ↑ | 780.92.HAN | Händel | | |
| ↑ | 780.92.HAY | Haydn | | |
| ↑ | 780.92.MAH | Mahler | | |
| ↑ | 780.92.MEN | Mendelssohn Bartholdy | | |
| ↑ | 780.92.MES | Messiaen | | |
| ↑ | 780.92.MOZ | Mozart | → 782.1.MOZ | |
| ↑ | 780.92.NON | Nono | | |
| ↑ | 780.92.RAV | Ravel | | |
| ↑ | 780.92.SOS | Shostakovich | | |
| ↑ | 780.92.VIV | Vivaldi | | |
| ↑ | 780.922 | collective biographies of musicians | | |
| ↑ | 780.92243 | German musicians | → 780.943 | |
| ↑ | 780.92245 | Italian musicians | → 780.945 | |
| ↑ | 780.93 | music in Antiquity | | |
| ↑ | 780.937 | music in Roman age | | |
| ↑ | 780.938 | music in ancient Greece | → 781.0938 | |
| ↑ | 780.94 | European music | | |
| ↑ | 780.942 | English music | | |
| ↑ | 780.943 | German music | → 780.92243 781.7100943 | |
| ↑ | 780.944 | French music | | |
| ↑ | 780.945 | Italian music | → 016.780945 709.45 780.92245 781.7100945 | |
| ↑ | 780.9451 | music in NW Italy | | |
| ↑ | 780.9452 | music in Lombardy | | |
| ↑ | 780.94521 | music in Milan | | |
| ↑ | 780.9453 | music in Veneto, Trentino AA, Friuli VG | | |
| ↑ | 780.94531 | music in Venice | | |
| ↑ | 780.9454 | music in Emilia-Romagna | | |
| ↑ | 780.9455 | music in Tuscany | | |
| ↑ | 780.9456 | music in central Italy | | |
| ↑ | 780.9457 | music in Southern Italy | | |
| ↑ | 780.9458 | music in Sicily | | |
| ↑ | 780.946 | music in Spain and Portugal | → 781.7100946 | |
| ↑ | 780.947 | music in Russia | | |
| ↑ | 780.948 | music in Northern Europe | | |
| ↑ | 780.95 | music in Asia | | |
| ↑ | 780.96 | music in Africa | | |
| ↑ | 780.97 | music in Northern America | | |
| ↑ | 780.98 | music in Southern America | | |
| ↑ | 781 | music principles and forms | → 016.781 | |
| ↑ | 781.09 | history of music principles | | |
| ↑ | 781.0902 | music principles in Middle Ages | → 780.902 | |
| ↑ | 781.0903 | music principles in Modern Age | → 780.903 | |
| ↑ | 781.09031 | music principles in 16th century | → 780.9031 | |
| ↑ | 781.0904 | music principles in 20th century | → 780.904 781.170904 | |
| ↑ | 781.092 | music theoreticians | → 781.17092 | |
| ↑ | 781.0938 | music principles in ancient Greece | → 780.938 | |
| ↑ | 781.094 | music principles in Europe | | |
| ↑ | 781.1 | fundamental principles of music | | |
| ↑ | 781.11 | psychological principles of music | | |
| ↑ | 781.17 | artistic principles of music | | |
| ↑ | 781.1709 | history of artistic principles of music | → 781.2509 | |
| ↑ | 781.17092 | music art theoreticians | → 781.092 | |
| ↑ | 781.17094 | artistic principles of music in 20th century | → 781.0904 | |
| ↑ | 781.2 | music elements | | |
| ↑ | 781.22 | tempo | | |
| ↑ | 781.224 | rhythm | | |
| ↑ | 781.23 | music sound | | |
| ↑ | 781.24 | melody | | |
| ↑ | 781.25 | harmony | | |
| ↑ | 781.2509 | harmony in history | → 781.1709 | |
| ↑ | 781.26 | tonal systems | | |
| ↑ | 781.263 | Medieval ecclesiastical modes | | |
| ↑ | 781.28 | tessitura | | |
| ↑ | 781.286 | counterpoint | | |
| ↑ | 781.3 | composition | | |
| ↑ | 781.309 | history of composition | | |
| ↑ | 781.33 | seriality | | |
| ↑ | 781.4 | music techniques | | |
| ↑ | 781.42 | learning techniques, solfège | | |
| ↑ | 781.43 | execution techniques | | |
| ↑ | 781.4309 | history of execution techniques | | |
| ↑ | 781.45 | direction | | |
| ↑ | 781.46 | interpretation | | |
| ↑ | 781.4609 | history of interpretation | | |
| ↑ | 781.47 | accompaniment | | |
| ↑ | 781.49 | music recording | | |
| ↑ | 781.5 | music types | | |
| ↑ | 781.542 | music for movies | → 780.0791 | |
| ↑ | 781.556 | music for ballet | → 792.8 | |
| ↑ | 781.6 | musical traditions | | |
| ↑ | 781.62 | traditional folk music | | |
| ↑ | 781.62007 | ethnomusicology | | |
| ↑ | 781.625 | Italian traditional music | | |
| ↑ | 781.63 | light music, pop | | |
| ↑ | 781.64 | Western popular music | | |
| ↑ | 781.65 | jazz | | |
| ↑ | 781.66 | rock | | |
| ↑ | 781.7 | sacred music | → 782.22 | |
| ↑ | 781.71 | Christian sacred music | → 248 | |
| ↑ | 781.710092 | Christian musicians | → 780.92 | |
| ↑ | 781.72 | music of Christian liturgical year | | |
| ↑ | 781.8 | musical forms | | |
| ↑ | 782 | vocal music | → 016.782 | |
| ↑ | 782.00268 | music lyrics | → 782.10268 | |
| ↑ | 782.0092 | vocal music authors and interpreters | → 780.92 782.1092 782.2092 782.43092 | |
| ↑ | 782.1 | drama vocal music, operas | → 016.7821 792.5 | |
| ↑ | 782.1.MOZ | Mozart | → 780.92.MOZ | |
| ↑ | 782.1.VER | Verdi | → 782.1092.VER | |
| ↑ | 782.1.WAG | Wagner | → 782.10268.WAG 782.1092.WAG | |
| ↑ | 782.10268 | librettos | → 782.00268 | |
| ↑ | 782.109 | history of opera music | → 792.509 | |
| ↑ | 782.109032 | opera 1600 to 1750 | → 780.9032 | |
| ↑ | 782.109034 | opera 1825 to 1899 | → 780.9034 | |
| ↑ | 782.10904 | opera in 20th century | → 780.904 | |
| ↑ | 782.1092 | opera authors and interpreters | → 782.0092 | |
| ↑ | 782.10922 | collective biographies of opera authors and interpreters | | |
| ↑ | 782.1094 | opera in Europe | | |
| ↑ | 782.10943 | opera in Germany | | |
| ↑ | 782.10944 | opera in France | | |
| ↑ | 782.10945 | opera in Italy | → 792.50945 | |
| ↑ | 782.2 | non-drama vocal music | → 016.7822 | |
| ↑ | 782.20262 | vocal music manuscripts | → 782.220262 | |
| ↑ | 782.20902 | Medieval vocal music | | |
| ↑ | 782.2092 | non-drama vocal music authors and interpreters | → 782.0092 782.22092 | |
| ↑ | 782.22 | sacred vocal forms | → 781.7 | |
| ↑ | 782.220262 | sacred vocal music manuscripts | → 782.20262 | |
| ↑ | 782.22092 | authors and interpreters of sacred vocal music | → 782.2092 | |
| ↑ | 782.23 | oratorios | | |
| ↑ | 782.24 | complex vocal compositions | | |
| ↑ | 782.25 | simple vocal compositions | | |
| ↑ | 782.26 | mottettos | | |
| ↑ | 782.27 | hymns | | |
| ↑ | 782.29 | liturgical vocal music | | |
| ↑ | 782.297 | tropes | | |
| ↑ | 782.298 | liturgic drama | | |
| ↑ | 782.3 | religious functions | | |
| ↑ | 782.32219 | orthodox functions | | |
| ↑ | 782.3222 | Gregorian chants | | |
| ↑ | 782.323 | mass | | |
| ↑ | 782.324 | divine office | | |
| ↑ | 782.4 | prophane forms | | |
| ↑ | 782.42 | songs | | |
| ↑ | 782.43 | poetry-derivated forms | | |
| ↑ | 782.43092 | authors of poetry-derivated forms | → 782.0092 | |
| ↑ | 782.430945 | poetry-derivated forms in Italy | | |
| ↑ | 782.47 | song cycles | | |
| ↑ | 782.48 | prophane cantatas | | |
| ↑ | 782.5 | mixed voices | | |
| ↑ | 783 | music for single voices | | |
| ↑ | 783.2 | solo voice | | |
| ↑ | 784 | instruments and ensembles | → 704.949784 | |
| ↑ | 784.1 | principles, forms, instruments | | |
| ↑ | 784.183 | sonata | | |
| ↑ | 784.188 | dance forms | | |
| ↑ | 784.19 | instruments | | |
| ↑ | 784.19074 | instrument museums and collections | | |
| ↑ | 784.1909 | history of instruments | | |
| ↑ | 784.192 | techniques and procedures for instruments | | |
| ↑ | 784.2 | symphonic orchestra | | |
| ↑ | 784.8 | band | | |
| ↑ | 785 | single-instruments ensembles | | |
| ↑ | 785.71 | groups of strings | | |
| ↑ | 786 | keyboard, mechanic and percussion instruments | | |
| ↑ | 786.2 | pianos | | |
| ↑ | 786.2092 | piano authors and interpreters | | |
| ↑ | 786.3 | clavichords | | |
| ↑ | 786.4 | harpsichords | | |
| ↑ | 786.5 | organs | | |
| ↑ | 786.5092 | organists | | |
| ↑ | 786.5094 | European organs | | |
| ↑ | 786.5192 | organ techniques | | |
| ↑ | 786.51943 | German organs | | |
| ↑ | 786.51944 | French organs | | |
| ↑ | 786.51945 | Italian organs | | |
| ↑ | 786.55 | reed and regal organs | | |
| ↑ | 786.6 | mechanic and eolic instruments | | |
| ↑ | 786.7 | electronic instruments | | |
| ↑ | 786.8 | percussion instruments | | |
| ↑ | 786.9 | drums | | |
| ↑ | 786519 | specific organs | | |
| ↑ | 787 | stringed instruments | | |
| ↑ | 787.2 | fiddles | | |
| ↑ | 787.2092 | fiddlers | | |
| ↑ | 787.219092 | lutists, fiddle makers | | |
| ↑ | 787.3 | violas | | |
| ↑ | 787.4 | cellos | | |
| ↑ | 787.5 | contrabasses | | |
| ↑ | 787.6 | old violas | | |
| ↑ | 787.8 | picked lute family | | |
| ↑ | 787.83 | lutes | | |
| ↑ | 787.87 | guitars | | |
| ↑ | 787.9 | harps | | |
| ↑ | 787219 | specific fiddles | | |
| ↑ | 788 | wind instruments | | |
| ↑ | 788.3 | flute family | | |
| ↑ | 788.32 | transverse flutes | | |
| ↑ | 788.4 | reed instruments | | |
| ↑ | 788.5 | double-reed instruments | | |
| ↑ | 788.6 | simple-reed instruments | | |
| ↑ | 788.9 | brasses | | |
