The cathedral that was the home of the organs Dirk Andries Flentrop restored in 1977 was built in sections between what years? 
Dirk Andries Flentrop:  He was noted for his 1977 restoration of two organs from the 17th and 18th centuries in the Mexico City Metropolitan Cathedral. Mexico City Metropolitan Cathedral:  The cathedral was built in sections from 1573 to 1813 around the original church that was constructed soon after the Spanish conquest of Tenochtitlan, eventually replacing it entirely.
1573 to 1813