PT Sonnet Rhymes

Counting Rhymes in the Portuguese Sonnet

A sonnet (soneto) is a fixed form of 14 verses, usually written in decasyllables (Camonian) or alexandrines (12 syllables). The structure that prevails in Portuguese is the Italian (Petrarchan) sonnet, split into 4-4-3-3 (two quatrains plus two tercets). The Shakespearean (English) sonnet, by contrast, follows 4-4-4-2 (three quatrains and a final couplet). How many distinct rhyme sounds you get depends on the scheme. The classical Petrarchan arrangement ABBA ABBA CDC DCD has 4 distinct rhymes; ABBA ABBA CDE CDE has 5; and the Shakespearean ABAB CDCD EFEF GG has 7.

In Portuguese literature, it was Luís Vaz de Camões (author of Os Lusíadas, 1572) who established the decasyllabic sonnet as a leading lyric form. Several masters followed. Bocage, the pre-Romantic, leaned into satirical and erotic sonnets. Cruz e Sousa, the Brazilian Symbolist, drew on musicality and synesthesia in Broquéis (1893). Olavo Bilac set down the rules of Parnassian rigor, and Vinícius de Moraes kept the 14-verse architecture even as his voice turned modern.

Applications

Literature students reach for this calculator when they analyze sonnets for school exams (ENEM, vestibulares, Cames) and in university criticism courses. Aspiring poets check whether a composition fits a classical scheme before sending it off to a contest or publisher. For editors and anthologists, counting rhymes is one way to sort sonnets by school (Classicism, Arcadism, Romanticism, Parnassianism, Symbolism, Modernism) and to weigh the structural choices made by Camões, Bocage, Cruz e Sousa, and writers working today.

FAQ

What is the most common rhyme scheme in Portuguese sonnets? From Camões onward, the Italian/Petrarchan scheme ABBA ABBA CDC DCD (or CDE CDE) has been the standard, with 4 to 5 distinct rhyme sounds across the 14 verses.

How does the Shakespearean sonnet differ? The English/Shakespearean sonnet runs three quatrains (ABAB CDCD EFEF) and then a heroic couplet (GG). That comes to 7 distinct rhymes, nearly twice as many as the Petrarchan model.

Are all Camonian sonnets in decasyllables? Mostly, yes. Camões fixed the heroic decasyllable (stress on the 6th and 10th syllables) as his standard meter, though now and then he reached for the sapphic decasyllable (stress on 4-8-10) for variety.