Born in Valladolid, Germán Díaz studied classical guitar and Classical Philology at the University of Valladolid. He studied hurdy-gurdy with Rafael Martin, Pascal Lefeuvre, Laurent Tixier, Isabelle Pignol,Gilles Chabenat, Nigel Eaton, Patrick Boufard, Laurence Bourdin, Valentin Clastrier, Matthias Loibner, Tobie Miller, etc. He has played all over the world in prestigious halls and festivals such as the Marrakech,Concert Gebaum in Amsterdam, University of Columbia and Reales Alcazares of Seville.
He has formed part of the Viellistic Orquestra, a hurdy-gurdy group based in France. This project disappeared in 2004, and German formed a duo with the artistic director, PascalLefeuvre, also co-founding the Symphonia Quartet, an Iberian hurdy-gurdy quartet together with Rafael Martín, Marc Egea and Pascal Lefeuvre. In 1999, he was awarded with the “Racimo de Oro” prize for his work in the investigation and diffusion of tradicional music. In 2004, he started his own record label, Producciones Efimeras, with Fernando Fuentes,with which he has paid special attention to Hurdy-gurdy players like Marc Egea or Matthias Loibner. In November 2008, Classical RNE dedicated to him a programme about the hurdy-gurdy,live from the Juan March Foundation of Madrid.
His Cd “Popular Music of the Civil War”, a hurdy-gurdy and guitar duo with Antonio Bravo,was chosen second-best record of the year 2009 by “Cuadernos de Jazz.”