6 of the Songs Without Words, in which, by the way, the principle of enlargement by the addition of an independent prefix (introduction) and affix (coda) is also illustrated:-- First number the forty-six measures with pencil.
The first cadence occurs in measure 7, and marks the end of the prelude.

Part I begins in measure 8.

In measure 11 there is a semicadence, at end of Antecedent phrase; in measure 17, a strong perfect cadence, which, in connection with the subsequent change of melodic form, distinctly defines the end of Part I (period-form, extended).

Part II therefore begins in measure 18.

In measures 21, 25, 29, cadences occur, but none conclusive enough to close the Part.
This conclusion takes place, however, in measure 34.