We are a sorry excuse for a choir now, and for that reason, most of the time we don't sing. But our eldest sister has been humming the opening to "O Wisdom" all week, and even though I knew it would be off key and totally out of whack, I still began the antiphon by singing it instead of saying it. It was awful. But it reminded me of the fairy tale of the monks in a small Russian community who hired a professional singer to sing on one of their sacred occasions. Afterward, the monk was praying and said, "Usually the angels come to hear us on this night, but I didn't sense them this year." The answer was, "Usually you sing. We come to hear you."
Oddly enough YouTube has no video of anyone chanting these haunting melodies. That's too bad. You sure don't want to hear me sing them, even if the angels don't mind.