Usually, a Petrarchan sonnet has a flexible rhyme scheme, so the octave is kind of rigid, it's more ABBA and then the sestets that kind of does its own thing.
The Petrarchan sonnet was not developed by Petrarch himself, but rather by a string of Renaissance poets. Because of the structure of Italian, the rhyme scheme of the Petrarchan sonnet is more easily fulfilled in that language than in English. The original Italian sonnet form divides the poem's 14 lines into two parts, the first part being an octave and the second being a sestet.
近义、反义、联想词
近义词
n.
sonnet
英英词典
petrarchan sonnet n.
a sonnet consisting of an octave with the rhyme pattern abbaabba, followed by a sestet with the rhyme pattern cdecde or cdcdcd