I post with caution, because this is a subject that did not show up in the searches I did ("music" "foreign" "international" "international music" "foreign music") so be nice

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We have a very broad population of people. What do you listen to that not only isn't mainstream in America at all or even indie, but that you can only discover through foreign friends or random indie checks?
I listen to a somewhat prominent classical/celtic band called Secret Garden a lot, and some random Italian & Spanish & Israeli pop, but I love recommendations. Thanks guys!