His advocacy of Stradivarius violins was also key to the recognition of their maker as the foremost of all luthiers .
As one of the greatest virtuoso violinists of his day , Viotti was very influential in the field of instrumental technique .
Viotti 's advocacy of Stradivarius violins was also key to the recognition of their maker as the foremost of all luthiers .
As one of the greatest virtuoso violinists of his day , Viotti was very influential in the field of instrumental technique .