Mario Stefano PietrodarchiMario Stefano Pietrodarchi (bandoneon, accordeon) Turkiye Photo by:Remo Buess Mario Stefano Pietrodarchi (bandoneon, accordeon) Turkiye Mario Stefano Pietrodarchi was born in Atessa on December 26th 1980. He began studying the accordion at the age of nine before switching to the bandoneon later. From 1993 to 2001, he studied at the F. Fenaroli Civic…