When members of the rock band Men at Work recorded their legendary hit ‘Down Under’ in the early 1980s, they wanted to inject a stronger sense of Australianness into the song, so they included a flute riff of a few bars echoing the classic Australian children’s chorus ‘Kookaburra sits in the old gum tree’, just as one might, in a different geographical context, quote from ‘Rule Britannia’ or the ‘Battle Hymn of the Republic’ to convey a sense of a particular national identity. Little did the songwriters realise that someone owned the rights to the Kookaburra tune, such that reproducing even just a couple of seconds of it without permission could constitute an infringement of copyright.