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ماخذ

Schall, Claus. 58 exercises for bowing and fingering. Schall, Claus. Violin solo. 58 Exercises and Suite. 58 Exercises.

ترجمه

اسکال، نوئل. 58 exercises for bowing and fingering. اسکال، نوئل. Violin solo. 58 Exercises and Suite. 58 Exercises.