The summer solstice makes June 21 the longest day of the year, so it is ideal to celebrate with dignity one of the most popular arts in the world, but this date is also part of a very old tradition: the pagan festivals dedicated to nature or to the harvest (such as the St. John's fires) which, since ancient times, celebrated the sacredness of nature through a festive day around June 20.
At the beginning, the event was called "Faites de la musique !" (Make music!) because its objective was to encourage amateur musicians to perform everywhere in France. From the beginning they spread the word and, for the greatest happiness of the citizens, invade bars, parks, streets... to play original compositions or covers, all this in a friendly spirit boosted by the beginning of the summer period.