In 1978, Brazilian composer Silvio Ferraz had been present at a Good Friday procession in Prados, Minas Gerais. He was deeply moved by its sonority and symbolism. Thirty years later in 2008 Ferraz composed the piece Itinerário da Passagem: Veronica Nadir (“Itinerary of the Passage: Veronica Nadir”) for cello solo, string orchestra and percussion. This article contextualizes the piece, analyzes its harmony, discusses its sonorities and reveals its arc form based on density flux and harmonic rarefactions.