Translation: The work is widely considered to be Lasso's masterpiece, and continues to be performed over 400 years after the composer's death.
Translation: The earlier effort was written on the departure of a friend from Vienna, and this song was inspired by the departure of a friend, as well.
Translation: "Quia viderunt oculi mei" comes from the original "Et Misericordia Eius". "Sicut Erat" comes from the original "Gloria Patri".
Translation: Lyrics.