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William J
William J  
5 साल ·अनुवाद करना

Genio assoluto.
https://www.cmuse.org/valentin....-guerin-pyro-trombon

Musician Invents a Trombone That Shoots Flames Out Of It
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Musician Invents a Trombone That Shoots Flames Out Of It

Valentin Guerin, 25, is a French aspiring professional trombonist who came up with a crazy new invention: he calls it the Pyro-Trombone. Guerin invented the instrument himself and owns the patent.