Leading appraisers of fine musical instruments agree that in the art of making violins, no one has ever gone beyond the achievement of Antonio Stradivari. The incomparable visual beauty of his instruments and the infinite variety and magnificence of tone of which they are capable have by this time passed into the realm of legend. Collectors have paid many thousands of dollars for one of Stradivari's violins. It is strange, but true, that only one...