Penzance-born Rory McGrath writes and performs a Cornish song at the SUNS International Festival - a multilingual alternative to the Eurovision song contest, where English is banned.
Rory talks with fellow performers, and to academics, about how the internet and the spread of English as a lingua franca is threatening to smother small languages. The United Nations predicts that 90% of Europe's 200 minority languages will have ceased to exist by the end of the 21st century.
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