The Perrone quotation talks strictly about form. The metric matter is important because it clearly marks the song's rythmn, and the use of words that are stressed two syllables before the end of each line gives them a sense of harmonic continuity, which wouldn't happen if the last words were oxitone. For a native portuguese-speaker, it's kinda intuitive. But, in my opinion, the funniest thing about the lyrics is the fact that, in a progressive way, the three stories get completely distinct from each other by only switching the last words. I consider these stories the same, but in the first paragraph, it's told in a very linear way; in the second, it starts to get lost and subjective (as the arrangement gains strenght); and in the third, it's totally broken, almost psychedelic.
Chico travels through a lot of styles, and I think he is one of the best bossa-nova songwriters, like João Gilberto and Tom Jobim, for example. But indeed, Chico is much more for one who wants to know about Brazil's culture and collective emotions, than for one who just wants to listen to a relaxing bossa-nova session. His work tends to be less conventional and more intense than the cited's works. "Construção" is a song that demonstrates it. It's almost all written in a E minor scale, with some complex chords (a lot of sixths), and its dramatic nature is emphasized by Rogério Duprat's arrangement (the traffic noise). The lyrics themselves; the three stories end up with the death of the characters.
The Perrone quotation talks strictly about form. The metric matter is important because it clearly marks the song's rythmn, and the use of words that are stressed two syllables before the end of each line gives them a sense of harmonic continuity, which wouldn't happen if the last words were oxitone. For a native portuguese-speaker, it's kinda intuitive. But, in my opinion, the funniest thing about the lyrics is the fact that, in a progressive way, the three stories get completely distinct from each other by only switching the last words. I consider these stories the same, but in the first paragraph, it's told in a very linear way; in the second, it starts to get lost and subjective (as the arrangement gains strenght); and in the third, it's totally broken, almost psychedelic.