Is this really by Pergolesi? Musicologists have argued the question for for more than a century. There's no conclusive evidence that it's by him, yes there are monastic manuscripts dating from nearly a quarter century after his death attributing the Septem verba a Christo in cruce moriente prolata (The Seven Words of the Dying Christ on the Cross) to 'Sig Pergolese' and the set of performing parts at Kremsmünster Abbey in 2009 by Reinhard Fehling which forms the basis for this performance is evidence for its authenticity. In a way it doesn't matter whether Pergolesi wrote it or not – it's of sufficiently high quality that it can stand, or fall, on its own merits as a piece of music in its own right so I find myself agreeing with Fehling that:
"The question of the work's authenticity must be separated from that of its value. Or, to put it simply, its value does not depend on whether Pergolesi actually wrote it."
That being said I wish people would stop trying to tie it to Pergolesi's best known work. There is simply no basis for saying "certainly, there are more than faint echoes of his Stabat Mater here" because such echoes – if they exist at all, are dim and distant indeed. It's far more tightly constructed than his other works including the Stabat Mater and the orchestral writing is unlike anything else he ever wrote.
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