In the 18^th century, the technique of copper engraving, which until then had been used for etching, was applied to the printing of music and thus facilitated the publication of scores. This phenomenon allows a new rise of music in France, and mainly in Paris where the engravers quickly become famous throughout Europe. Publishing houses dedicated to music develop there. But on the outskirts of this Parisian breeding ground, we know that the city of Lyon, for example, had a very active musical life, with its Opera and its “Académie des Beaux-Arts”, which means that it had access to the scores of the time. For this flourishing to happen, music merchants in Lyon, known as “resellers”, were in charge of taking in deposit the scores coming from Paris to sell them to the Lyon public. But the terms of this trade are still poorly understood. Who were these resellers? What were they selling? Did they work as publishers? What influence did they have on Lyon shows?