Paula Robison encore at one of her 92nd Street Y concerts, a dance for flute and pandeiro, a large tambourine traditional in Brazil. Silverman invited the percussionist Cyro Baptista to join her. The flutist Irna Priore, who was at the concert, told her that in Brazil there was a huge repertory for flute in the choro, a tradition of popular song originating in 19th century Rio de Janeiro. Cyro Baptista's wife provided recordings and tapes of music that was largely unknown in the US. Robison began to work on it with Baptista and other Brazilian musicians, who toured with her and eventually
What Is a Nation? today". At the current time, however, the existence of separate nations serves to guarantee liberty, in a way which would be lost if the whole world served under one law and one master. "Each brings one note to the great concert of humanity..." Renan gives Switzerland as a prime example of a nation established by volition (choice, will): Renan's argument was summarized in the German term "Willensnation" ("nation-by-volition"), used to describe the status of Switzerland as a federal state by choice, and not along ethnic boundaries. The term became popular to describe the Swiss political model after World War I