Some aspects of violin playing in his day can be seen : the lightweight , concave bow and the absence of any chin rest or shoulder rest .
The first edition of Leopold Mozart 's Violinschule included this portrait of the author .
Some aspects of violin playing in Leopold Mozart 's day can be seen : the lightweight , concave bow and the absence of any chin rest or shoulder rest .
The first edition of Leopold Mozart 's Violinschule included this portrait of the author .