Stockhausen was using the term 'world music' long before any rockstar and debated the idea of a 'music of the whole world' in his essay 'Beyond the polyphony of the global village' in which he had written in 1973:

"The possibility to call to Africa to order a tape-recording, which I can then combine with electronic sounds, puts up a whole new setting, that offers the possibility to establish relations so far unknown.
Before that you could only listen to music from Africa, if you could travel there - and who could really do that?" <