Folk music is classed in M74. Folk music from many regions, and general collections, is in M74. Brackets are used after the 74 to indicate region or language. The numbers within brackets function like decimals.
Art music interpretations or arrangements of folk music (Aaron Copland, Percy Grainger, Bela Bartok) are shelved by medium in other classes.
To explore folk songs/music in the catalog, you can use subject headings. The most common are Folk songs, [language] or Folk Music--[Place].
The outline below is not complete; please contact us if you are looking for music of a particular language/region and you cannot it on the shelf or in the catalog.
| Class | Region or Language |
| 74[3] | Ancient |
| 74[33] | Hebrew, Yiddish |
| 74[4] | European (general) |
| 74[41] | Scottish |
| 74[415] | Irish |
| 74[42] | English, Great Britain |
| 74[429] | Welsh |
| 74[43] | German |
| 74[436] | Austrian |
| 74[437] | Czech |
| 74[4373] | Slovak |
| 74[438] | Polish |
| 74[439] | Hungarian |
| 74[44] | French |
| 74[45] | Italian |
| 74[46] | Spanish |
| 74[47] | Russian |
| 74[481] | Norwegian |
| 74[485] | Swedish |
| 74[489] | Danish |
| 74[492] | Dutch |
| 74[495] | Greek |
| 74[4977] | Bulgarian |
| 74[498] | Rumanian |
| 74[5] | Asia (general) |
| 74[51] | Chinese |
| 74[519] | Korean |
| 74[52] | Japanese |
| 74[54] | Indian |
| 74[6] | Africa (general) |
| 74[68] | South African |
| 74[7] | North American (US/Canada) |
| 74[71] | Canadian |
| 74[72] | Latin American, including Mexico |
| 74[729] | Caribbean |
| 74[73] | United States |
| 74[731] | African-American |
| 74[740] | U. S. Native American |
| 74[785] | Hawaiian |
| 74[81] | Brazilian |
| 74[82] | South Americas (Spanish language) |
| 74[914] | Philippines |
| 74[991] | Indonesia |
| 74[993] | New Zealand |
| 74[994] | Australia |
