I found this in Ryszard Kapuscinski’s Imperium, but can find no other reference to it. Perhaps the spelling is different, though I have tried variants. I am now intrigued and would like to hear these haunting, beautiful psalms.  If they exist.
‘A kind of Armenian psalm, haunting, beautiful. Benik had a new French recording of patarks sung in Paris by an Armenian choir. You can also hear patarks in Armenia if you go outside of Yerevan, to Echmiadzin, which is the Vatican of the Armenian church.’
Source: Ryszard Kapuscinski, Imperium, trans. Klara Glowczewska (New York: Vintage International, 1995), p. 43
I think he was talking about patarag, or badarak, like in the linked example. https://youtu.be/YspPay5ixhI I also came across this via Kapuscinski’s Imperium, and wanted to find out more.
Thank you so much for the clarification and the link. It must have been this that Kapuscinski was describing. Beatrice