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https://seamussweeney.net/2018/10/12/sancte-michael-archangele-defende-nos-in-proelio-plainchant-setting-of-prayer-to-st-michael-the-archangel-from-heiligenkreuz-abbey/
"Sancte Michael Archangele, defende nos in proelio" - plainchant setting of Prayer to St Michael the Archangel from Heiligenkreuz Abbey