LOURDES GARCIA-NAVARRO, HOST:
Good morning. I'm Lourdes Garcia-Navarro.
(SOUNDBITE OF SONG, "LOST")
PEMBROKE TRIO: (Singing in foreign language).
GARCIA-NAVARRO: This tune took a long journey to your radio today, about a thousand years. A trio at Pembroke College Chapel in Cambridge performed this over the weekend. It comes from an 11th-century manuscript from which a crucial page of musical notation was stolen. It took decades to reconstruct the piece after the missing page was recovered. Call it a medieval miracle. It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.