Written in 3 parts: 1) A Preparação (The Preparation); 2) A Escolhida (The Choosen); 3) O Ritual (The Ritual); commissioned by the Brazilian Ballet Company of Rio de Janeiro, 1968; First performance: 11 Juin 1968, Teatro Novo of Rio de Janeiro, Brazil, Percussion Ensemble, conducted by Marlos Nobre;recordings: Philips Phonogram 6833.177/178 (Rio de Janeiro Percussion Ensemble, cond.: Marlos Nobre); EMI ANGEL 063.422909 (Musica Nova Ensemble,cond.: Nobre); EMI PATHÉ MARCONI 7692791 (Ensemble à Percussion de Génève, cond. P.Métral); Lemán Classics CD LC 44.100 (Ensemble à Percussion de Génève, cond.: P. Métral); OFJUFP 001/2003 (Percussion Group of the Federal University of Paraná, Brazil); score and parts on sale.
Instrumentación: Percussion ensemble (10 players) & 40 perc.instr.
Edición: Marlos Nobre Edition
Puede adquirirse en: marlosnobre.edition@uol.com.br

Hizo estudios de composición con Hans J. Koelreutter y Camargo Guarnieri. Posteriormente, con Ginastera, Messiaen, Malipiero, Copland y Dallapiccola en el Centro Latinoamericano de Altos Estudios Musicales del Instituto Torcuato Di Tella de Buenos Aires.