This is a strong work about piety for Virgin Mary. It ends softly with the Dorian mode. Jacob Obrecht was a productive musician but with an unstable character. He was unfortunately chosen to be the Kapellmaster in Ferrare after Josquin Desprez. But he died from an unprecedented plague epidemic soon after. He was often named in theoreticians’ tracts. Jacob Obrecht knew how to link rigor and melodic sensitivity. He wrote it in several verses alternatim; that is to say with plainsong and polyphony alternating. The sections sung by two or three voices, the independence of the voices and the structure based on long-sectioned altos plainsong shows the legacy of Franco-Flemish musical techniques. Jacob Obrecht used series of chords, and it provokes beautiful moments of worship. The last section is composed of harmonic pillars and lace-like melody.