Overdue musical acknowledgements.
To Chris Johnson for his recommendation of Sr. Marie Keyrouz, the musical voice of the Christian East. "Stunning" is an inadequate description of her singing. Many, many thanks, Chris.
To Aumgn and Bob Pokoj for their recommendations of Palestrina and HB Recordings Direct, respectively. Both have proven to be magnificent, though I advise against listening to the Lamentations of Jeremiah in a morose mood. And yes, Hilary, I am looking into Henry Purcell's works. T'aint cheap, though.
Feel free to add more recommendations in the comment box below.