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The voice leading

How to lead the voices of harmony

1. The voice leading



In harmonization with 2 or more parts, each voice must meet a certain melodic logic,
through various agreements.
This logic is based on the following principles:

 

 

a. Vertical consideration



• In harmony with 4 voices for example, the range of each part is modeled on the human voice:

 

 

 

• The vertical space between the voices is also limited :

 


Soprano / Alto

 

1 octave maximum

Alto / Tenor

 

1 octave maximum

Tenor / Bass

 

1 twelfth maximum

 

 

Note : These limits can be broken briefly.

 

 

 

 

• The doublings



The triads require note doublings from 4 harmonic voices
These doublings are determined in relation to the series of overtones.



We must double in order :

 



- The root

 

 


- The fifth

 

 


- The third

 

 

 

 

Note : With the diminishd triads, we must duplicate the third.

 

 

 

 

• The deletions:.


  In a perfect major or minor triad, we must first delete the fifth.

 

 

Continue this lesson !

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