Hello, Estelle.

Shame on me because I'm Brazilian but I don't know this piece.

In spite of that, you can find the best material about brazilian IPA in this PDF file: http://www.ia.unesp.br/Home/Pesquisa/brazilian_portuguese_article.pdf

And you can count on me for reviewing your IPA. Just send me the text and your IPA transcription and I'll be more than happy to suggest some corrections, options and ideas.

Greetings

Carlos Vieira

Assistant GTA on Choral Conducting

University of Alabama