Antonio Stradivarius is universally acknowledged as being the greatest violin maker of all time. About 600 of his instruments have survived until the present day, among them violins, violas, and cellos, most of which are still played, studied, and regarded by the most famous and renowned soloists, collectors, art galleries, and museums as the “non plus ultra.” The long life of Stradivarius covers a truly crucial period in the history of music: it stretches from the second half of the seventeenth century, a moment of the definitive triumph of the violin as principal instrument of Baroque instrumental music, to the first part of the eighteenth century, a period of transition toward musical classicism. We maintain that it is important, therefore, to rediscover these musicians who are little known to the public of today, but who were quite well known and respected in the Cremona of their day. They were perhaps great exchangers of concrete ideas and advice with the great violin makers of the time. As it happens today in modern violin making workshops, the exchange of ideas and advice between musicians and instrument makers is the basis for the professional growth of both.