Classification
780 - Music
216
781 - General principles & musical forms
72
900 - History & geography
48
301 - Sociology & anthropology
37
700 - The arts; fine & decorative arts
30
330 - Economics
24
100 - Philosophy & psychology
17
370 - Education
17
658 - General management
17
005 - Computer programming, programs & data
15
300 - Social sciences
15
620 - Engineering & allied operations
14
820 - English & Old English literatures
13
006 - Special computer methods
12
616 - Diseases
12
621 - Applied physics
12
331 - Labor economics
11
004 - Data processing & computer science
10
650 - Management & auxiliary services
10
782 - Vocal music
10
153 - Mental processes & intelligence
9
306 - Culture & institutions
9
158 - Applied psychology
8
304 - Factors affecting social behavior
8
320 - Political science
8
500 - Natural sciences & mathematics
8
534 - Sound & related vibrations
8
338 - Production
7
340 - Law
7
400 - Language
7
800 - Literature & rhetoric
7
140 - Specific philosophical schools
6
200 - Religion
6
610 - Medicine & health
6
000 - Computer science, information & general works
5
600 - Technology
5
612 - Human physiology
5
025 - Library operations
4
305 - Social groups
4
333 - Economics of land & energy
4
381 - Commerce
4
384 - Communications; telecommunication
4
770 - Photography, photographs & computer art
4
785 - Ensembles with one instrument per part
4
786 - Keyboard & other instruments
4
791 - Public performances
4
001 - Knowledge
3
371 - Schools & their activities; special education
3
410 - Linguistics
3
519 - Probabilities & applied mathematics
3
more ...