Carlo Bergonzi we shall have to consider more fully further on, and for the present only refer to him as a pupil or assistant much more in immediate connection with the atelier of Stradivari than any maker known to us. Irregular workman as he was, swayed about this way and that by matters unknown to us, he kept steadfast to the Stradivarian lines to the end. The rest of his family were either his own pupils, or they may have even been at times with his master, as they all--so far as I am acquainted with them--are of the same school. These particulars all point in one direction--that Stradivari was not anxious and made no special efforts at introducing any new kind of tone--development of that already in existence was his aim, and on this line he appears to have led his immediate or personal pupils.
There is great probability that some very clever workmen whose names are lost to us, were with Stradivari for a time, long or short, and were able to imbibe the valuable precepts enjoined similarly on the other disciples. It is not at present known whether the sons of Stradivari had pupils or assistants, the rarity of their work seems to point to the contrary; their father having been so successful from the commercial point of view, apart from the higher aspect of his career, there may have been--we might say--the usual disposition amongst sons of successful fathers to take life more easily and repose among the laurels won for them, requiring only a little caretaking. There is some possibility of Thomas Balestrieri, of Mantua, having worked for a time under Stradivari, but not as a pupil; there is much in his work suggestive of this theory. His tone quality does not belong to the Amati school, in which tradition has it he was trained. He may have gone as help to Stradivari--for loose as was his general tendency, he could work finely when the fit was on him. Whether he went or not, there remains tone quality evidence of the strong influence of Stradivari, besides the throwing aside of the Amati traditions concerning proportions, curves and archings.
Of the other places to which personal pupils of the master went, we may take a passing glance at Genoa, a city not replete with makers of refinement, or numerous, but nevertheless with some sterling qualities. Among them and the most "Straddy" is Bernardus Calcanius; his earliest dates, if we can rely upon them, and they may prove at any moment to have been earlier than hitherto known, almost preclude the possibility of his having worked under Stradivari except as a youth. The influence of the master is, however, decidedly paramount in his work and no other tendency being noticeable, if not an immediate pupil, he took all possible pains to acquire the excellencies that were to his knowledge peculiar to Stradivari alone.