sentence: There are two young girls holding violins in their hands, standing with a music stand and a book with music notes behind them. sentence:  The older girl is helping and teaching her younger sister to properly hold the violin by changing her head position. sentence:  Then the older sister grabs her violin and tunes the strings of the violin. sentence:  Then older sister begins playing the violin while the younger sister watches her. sentence:  The older girl shows her sister how to play the violin. sentence:  Then they both begin to play the violin together.