"Le Grand Soufflet” is a festival dedicated to music we commonly present as « modern world music ». Originally focused on the accordion, the festival has been taking place every year in October in the city of Rennes and about 40 other cities of the Ille-et-Vilaine department (French Brittany) since 1996. Due to this experience and the particular feeling brought by this instrument, the festivals extends since 2021 towards popular music mixing tradition with a taste of modernity in various styles such as new trad, rock, electronic, urban music, experimental etc… Although the main object has changed, the Grand Soufflet festival certainly remains by its name and its history a major scene for accordion players from all over the world.