====== On Double Counterpoint ======
===== First Section: Double Counterpoint in Two Parts =====
==== Inversion at the Fourteenth ====

It remains, finally, to speak of double counterpoint at the //fourteenth// or //seventh//. Here are two series of figures which give the inversions:

^ Counterpoint  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  10  |  11  |  12  |  13  |  14  |
^ Inversion  |  14  |  13  |  12  |  11  |  10  |  9  |  8  |  7  |  6  |  5  |  4  |  3  |  2  |  1  |

According to the above combinations, two //thirds// in succession must be avoided, particularly by similar movement; since, in transposition, they produce two //fifths//. Every concord, as well as the //octave// and the //sixth//, which become discords when inverted, should be prepared and resolved either by the //third//, or by the //fifth//.

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The range of the //fourteenth// serves as the limit of this counterpoint.

> Extended example of counterpoint at the fourteenth

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> 2nd manner of inverting: Transpose the theme a //seventh// above, and the counterpoint an //octave// below

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> 3rd manner of inverting: Transpose the theme, and the counterpoint, a //seventh// below

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