The pipes of a medieval organ, buried for centuries and discovered near the Church of the Nativity in Bethlehem in the occupied West Bank, are once more filling a Jerusalem monastery with ancient melodies.

"This is a window into the past... we have the opportunity for the first time in modern history of listening to a medieval sound which is a thousand years old," said David Catalunya, a Spanish researcher who has worked for more than five years to bring the 11th-century instrument back to life.

"And it's not through a recreation or a hypothetical reconstruction, but it's really the original sound: the same vibration that the Crusaders heard at the Nativity Church," he told AFP.

Dating nearly as far back as the invention of the instrument itself, it was discovered in........

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