Super-Jumbo Euphonon guitarra (c. 1939) propiedad del musiicano Django Reinhardt en exhibición en Guitars en Subasta por Guernsey's en Nueva York, NY el 26 de febrero de 2016. (Foto de Stephen Smith) ***
Know Your Acoustic Body: Jumbo
ESCUELA DE MUSICA UDABERRIA MUSIKA ESKOLA: octubre 2015
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