Performer(s) Maria Isabel Mallaguerra Pinto de Barros (slacker's voice), Natália Santos Clara (teacher's voice), Maria Helena Taxa de Araújo (Alda's voice), Annerose Gilek (Júlia's voice), Maria Madalena Teixeira de Sousa (Marta's voice)
Students' Choir:
Maria Teresa Morgado, Maria Fernando Coelho Neto, Maria de Lurdes Pereira de Andrade, Ana Maria Santos Silva
Parnaso Orchestra
Fernando Corrêa de Oliveira (conductor)
