The opera composer Giuseppe Verdi not only bequeathed deeply sentient sacred works – his widely well-known Requiem bears witness to this – but he also composed this piece in his last period of creativeness, the Ave Maria from the Quattro pezzi sacri, being anything but opera-like. Originally meant to be a playful exercise in harmonizing an idiosyncratic scale (Scala enigmata), an original, impressive setting of this prayer resulted! Verdi expertly leads this "scale" through the bass, alto, tenor and soprano, accompanies it in an ever-changing way through the other voices and at the same time traces the textual contents in a subtle musical manner.