تماشای ویدئو اموزش تخصصی ویولون..مستر کلاس ماکسیم ونگروف از آی-ویدئو
Maxim Vengerov's masterclass on Bach's Sonata No.1, recorded at the Royal Academy of Music. In this clip, Vengerov teaches the student how to achieve a good vibrato, by coordinating the bow