How selected consonants sound around Europe, in 9 maps
http://goo.gl/F95Icd
http://i.imgur.com/YJkgCUs.png
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http://i.imgur.com/501zafC.png
http://i.imgur.com/koT4C4e.png
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http://i.imgur.com/XVDzu6P.png
http://i.imgur.com/Qh9My5L.png
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http://i.imgur.com/DqecVBK.png