[Illustration: Example 39. Fragment of Mendelssohn.]
These six measures result from a repetition (variated) of the third and fourth measures of the original—regular—four-measure phrase. A cadence is due in the fourth measure, but it is not permitted to assert itself; and if it did, its cadential force would be neutralized by the entirely obvious return to (repetition of) the motive just heard. Further:—
