QUESTIONS 



441 



10. What does the soft pedal do to reduce the loudness of the 

 tone? 



11. How does the violinist tune his violin? 



12. How does he produce high and low pitches on the same 

 string? 



13. Why does a violin have a hollow box under the strings? 



14. Why is there an opening in the box? 



15. Why do some violins produce more beautiful tones "than 

 others? 



16. Of what kind of wood is the violin made? Why? 



17. Why are old violins said to be better than new violins? 



18. Why does a string over a sounding board cause a louder tone 

 than a string vibrating alone? 



19. Why are bass horns in the band larger than any cornet? 



20. How does the musician produce different pitches on a slide 

 trombone? 



FIG. 338. By varying the tension of 

 the lips and the pressure of breath 

 in addition to the use of the tongue, 

 all the notes of the scale may be pro- 

 duced, 



FIG. 339. What causes the sound in 

 the drum? Why is it so large and 

 hollow? Why does changing the posi- 

 tion of the fingers on the holes change 

 the pitch of the fife? 



