ORIGIN AND NATURE OF MINOR 



231 



49. Chords Derived from the Minor Forms oj Con- 

 sonance and Dissonance in One Voice 



From the original minor form of consonance / is 

 derived the original minor triad /. All other minor 

 triads like iv and v are duplicates. Below are the 

 triads /, iv, v. 



i 



^ 





IV 



I 



Like its major prototype the minor form of disso- 

 nance presents six chords, namely, the small ninth- 

 chord Fj, the two seventh-chords V^ and ra°y, the 

 three triads F, F77°, 77°, as follows: — 



i 



7 



5 ? 

 3 5 



-19- 



1 



^ 



^^^ 



<5?- 



N.B. 



vir 



7 



N.B. 



r/yc 



Jt 



Of all these chords only two forms are of minor 

 origin. They are the small ninth-chord Fg and the 

 diminished seventh-chord F77°^, both marked N.B. in 

 our example. Each of these forms is the first of its 

 kind, all like forms being duplicates of these originals. 

 The remaining four chords are duplicates of forms 

 which originated in major and have been presented 

 in § 39. The first, second and fourth of the above 

 chords are based on the harmonic root mi, the third 



