The sources for artist quotes in this article are listed below:
Guide to the 2nd Bienal de Canarias, 2009
Died in the Wool microsite, davidsylvian.com, 2011
The author’s conversation with John Butcher, 2021
UNESCO: citation regarding the inclusion of the Silbo Gomero on the Representative List of the Intangible Cultural Heritage of Humanity, 2009
The author’s conversation with Ros Stephen, 2021
Amplified Gesture, samadhisound, 2009
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