Carolin Niemczyk and Daniel Grunenberg are a couple - and a music duo, calling themselves Glasperlenspiel - "Glass Bead Game" - after the novel by the renowned German author Hermann Hesse. And their game has taken them to the top of the charts. This summer, their latest album "Grenzenlos" bounced into the German Top Ten. Now they're taking it on tour.
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But first, we dropped in on Glasperlenspiel in their home town near Lake Constance.