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The caxirola () is a Brazilian percussion instrument created by Carlinhos Brown and consisting of a closed plastic basket with a flat-bottom filled with small synthetic particles, in an attempt to create a sustainable product.〔(colunistas.ig.com.br/ ) Carlinhos Brown diz que caxirola é mais sustentável que caxixi〕 It was based on the caxixi, and thus it is also an indirectly struck idiophone, sounded by shaking. The caxirola was certified on September 27, 2012 by the Brazilian Ministry of Sports and was created to be the official musical instrument of the 2014 FIFA World Cup in Brazil. However, it will not be allowed inside stadiums of both the World Cup and the 2013 FIFA Confederations Cup as the government considers it a security risk. == Background and concept == Carlinhos Brown has expressed concern about the potential unpleasing sound of the official instrument of the Cup, as it happened with the vuvuzelas of the previous tournament. According to him, "''the caxirola respects the sound limits. It reproduces sounds of nature, of the sea, because of that, we worked with the best acoustic engineers so that the sound was nice, pleasant.''"〔(【引用サイトリンク】title=G1 - Em exposição no Planalto, Carlinhos Brown ensina a tocar a caxirola - notícias em Distrito Federal )〕 "Researchers at Brazil's Federal University of Santa Maria determined .. that it would take 30,000 caxirolas to produce the same sound pressure level as a single vuvuzela." Brown also said Aldo Rebelo and FIFA representatives followed the creation of the instrument closely, and it is now part of the official licensed products of FIFA.〔 The instrument was presented at the opening of a festival called "O Olhar que Ouve" (''The Look that Hears''), made up of 19 works of art by Brown. The caxirolas were tested by Brazilian president Dilma Roussef, who claimed they were "more beautiful than the vuvuzelas".〔(【引用サイトリンク】title=Dilma elogia caxirola e diz que é mais bonita que a vuvuzela )〕 She also stated: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Caxirola」の詳細全文を読む スポンサード リンク
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