Five levels of strophic structure (metric, versification, graphic, syntactic and thematic) predicted by former scholars as mutually corresponding, are presented in this article as putative competing forms of the text composition. The Mickiewiczian stanza, originated in 1828, and the BZ stanza, written for the first time in 1841, are examples of the struggle between the two above mentioned phenomena, i.e. the graphic notation of stanza and the verse composition announced by rhymes. These phenomena in the same poem manifest different strophic forms, so that one is not sure whether the parts of the text read consist of four or of six verses. This ambiguity provides the poem with a rhythmic polyphony that cannot be described in precise terms of typological theory of stanza.