210 



THE NATURE OF MUSIC 



us to discriminate positively between regnant tones 

 and by tones, and they clearly and conclusively demon- 

 strate in the case of the two ninths that a tone may be 

 at once a regnant tone and in cadence to its own 

 harmony. A regnant tone is not a bytone, a bytone 

 is not a regnant tone: by carefully and strictly ad- 

 hering to the necessary distinction between the two 

 we shall avoid what else would be inextricable con- 

 fusion. 



Are there any diatonic bytones to either of the 

 two ninths during the regnancy of either of the two 

 dominants? No, the tones thus far accounted for 

 which lie over and under the ninth are, like the 

 ninth, components of the regnant dominant in both 

 modes. The tone under the ninth is the root, the 

 tone over the ninth is the third of the dominant, 

 during the regnancy of which both tones are of 

 course regnant tones. We are now to see that the 

 ninth is not the only cadencing regnant tone as shown 

 at N.B. in the next parallel examples, in which the 

 melody cadences from the regnant third to the regnant 

 ninth. 



35739 1 91391357399 1 



^ Y-^ N.B. N.B. ~^ 



Major 



V-A- 



3 5 



7 3 9 



l8ol3578 9 1 



^^^^^^M 



Minor 



N.B. 



N.B. 



N.B. 



