This text is one of the most moving one of the liturgy songs. EstÍv„o Lopes Morago composed a song for a standard mixed choir in A/E mode just like TomŠs Luis de Victoria and Alonso Lobo did. It is a sad but flowing polyphony. There is no difficulty to sing it. You need to sing with discretion and humility.
EstÍv„o Lopes Morago was born around 1580. He studied in …vora and was a Kapellmeister and a canon in Viseu Cathedral. Unfortunately, a major part of his work disappeared with the 1755 Lisbon earthquake.