MUSIC, AND SOUND INSTRUMENTS 



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FIG. 310. Tuning fork. The tone 

 of a scientifically mounted tuning 

 fork is absolutely devoid of par- 

 tial tones. Hence the tone-wave 

 it creates is entirely free from 

 the irregularities found in other 

 tone-waves which are caused by 

 their partial-waves. 



FIG. 311. Violin. The tone of the 

 violin has many partial-tones. 

 None of these is aggressively 

 dominant, however, hence the 

 fluent, smooth, quality of the in- 

 strument. This is shown in the 

 photograph of its tone wave. There 

 are many irregularities in the wave, 

 but they are all too small to in- 

 fluence its general symmetry. 



FIG. 312. Oboe. Here we have a 

 tone-wave which shows unmistak- 

 ably a tone of very distinct in- 

 dividuality. The pronounced ir- 

 regularities of the oboe's tone-wave 

 are caused by the dominance of 

 certain of its partial tones. 



FIG. 313. Human voice. This 

 tone-wave was created by pro- 

 nouncing the vowel sound "Ah." 

 The voice is particularly rich in 

 partial-tones, some voices, indeed, 

 containing as many as 40 that are 

 di stinguishable . 



FIG. 314. Horn. This instrument has a strong fundamental with many partials. 

 Photographs of the tones of Musical Instruments. 



