Classification
780 - Music
13
781 - General principles & musical forms
10
621 - Applied physics
9
620 - Engineering & allied operations
8
786 - Keyboard & other instruments
7
005 - Computer programming, programs & data
5
004 - Data processing & computer science
4
025 - Library operations
4
900 - History & geography
4
006 - Special computer methods
3
300 - Social sciences
2
301 - Sociology & anthropology
2
304 - Factors affecting social behavior
2
400 - Language
2
700 - The arts; fine & decorative arts
2
784 - Instruments & instrumental ensembles
2
001 - Knowledge
1
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
302 - Social interaction
1
330 - Economics
1
338 - Production
1
339 - Macroeconomics & related topics
1
410 - Linguistics
1
534 - Sound & related vibrations
1
581 - Specific topics in natural history
1
600 - Technology
1
612 - Human physiology
1
670 - Manufacturing
1
709 - Historical, geographic & persons treatment
1
720 - Architecture
1
910 - Geography & travel
1
930 - History of ancient world to ca. 499
1