He is the version by Roberta Sá and her orchestra of Mutirão De Amor by Jorge Aragão :
Mutirão De Amor - Jorge Aragão

It is in [ I A Bx4 A Bx4 I ]
On Youtube

2 questions please :
1) How are we supposed indicate the interprator (with regard to the composer) ?
2) Where to the indicate the structure (AABA for example) ?

Regards,
Sébastien