“Traditional” music is usually strongly characterised by its country (or region) of origin so most traditional/folk repertoire can be found in the “Geographical Regions” section of the Repertoire Catalogue.
We do have a problem, however, with where to put a lot of american “fiddle tunes” because a lot of those written in the USA are so closely related to european (especially irish and UK) fiddle music that it is difficult to give them a real “USA” identity. In fact, many of these tunes are found in collections of both irish and USA fiddle music (Arkansas Traveller, Chandler’s Hornpipe, Turkey in the Straw etc). Because of this confusion, apart from also being included in all of their possible geographical regions of origin, we have created a totally international category of “Traditional Fiddle Tunes” where all of these types of pieces can be found.