Classification
781 - General principles & musical forms
171
621 - Applied physics
70
620 - Engineering & allied operations
56
610 - Medicine & health
26
000 - Computer science, information & general works
24
006 - Special computer methods
19
700 - The arts; fine & decorative arts
14
791 - Public performances
12
384 - Communications; telecommunication
11
331 - Labor economics
9
302 - Social interaction
8
500 - Natural sciences & mathematics
8
600 - Technology
8
777 - [Unassigned]
8
778 - Fields & kinds of photography
8
780 - Music
8
770 - Photography, photographs & computer art
7
333 - Economics of land & energy
6
570 - Life sciences; biology
6
363 - Other social problems & services
5
330 - Economics
4
540 - Chemistry & allied sciences
4
580 - Plants (Botany)
4
794 - Indoor games of skill
4
900 - History & geography
4
658 - General management
3
745 - Decorative arts
3
380 - Commerce, communications & transportation
2
786 - Keyboard & other instruments
2
004 - Data processing & computer science
1
005 - Computer programming, programs & data
1
100 - Philosophy & psychology
1
264 - Public worship
1
320 - Political science
1
340 - Law
1
370 - Education
1
381 - Commerce
1
507 - Education, research & related topics
1
551 - Geology, hydrology & meteorology
1
591 - Specific topics in natural history
1
598 - Birds
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
630 - Agriculture & related technologies
1
650 - Management & auxiliary services
1
657 - Accounting
1
782 - Vocal music
1
784 - Instruments & instrumental ensembles
1
792 - Stage presentations
1