The user is not computer savvy, so that is out. I, conversely, did my first degree thesis on information retrieval, so commentators trying to weird me with a bafflegab thesaurus can butt out. Also any text retrieval or KWIC system is not viable for the user. I understand the Dewey system (although not necessarily the modifications made by Stott which somewhat remind me of the library in Ankh-Morpork), can explain false drops in a notched edge retrieval system, and I remember being asked to assist a partner of mine in a certain lawfirm with some advice to a funny man who claimed to have invented the hyperlink, and who later wrote to my said partner that i was "very well informed for a lawyer".

Australian is "Anglicana" - only recently not a colony.

Africa and Latin America and Cuba are "World".

Sinatra and Humour are not music.