Puerpera means “woman in childbirth”, and the Latin word for boy is puer. Eructavit is a royal epithalamium, the song of David’s love for his wife the queen, of God’s love for Israel, of Jesus’s love for His Church. An epithalamium is a song or poem celebrating a marriage, and thus we speak of the Church in the feminine form.
Painter unknown to me. Recording on-site at Saint-Martin de Ligugé Abbey, France, currently 28 monks, part of the Solesmes Congregation, traditional Benedictines.