Melodic interval of entry: 5-5-4+
Time interval of entry: S1/1/1
Remarks: The superius and tenor are in strict fuga at the lower fifth, as usual in this piece. The altus also follows the bassus in strict fuga at the lower fourth, but only the first two notes of the soggetto are the same between the superius/tenor and bassus/altus pairs. Possible hypothesis: having established the superius/tenor framework, Mouton attempted to elaborate it into a full four-voice stacked canon, but was forced to alter the third and fourth entrances because of contrapuntal difficulties?