 Isidore of Seville wrote about the local music in the 6th century.His influences were predominantly Greek, and yet he was an original thinker, and recorded some of the first details about the early music of the Christian church.He perhaps is most famous in musical history for declaring that it was not possible to notate sounds, an assertion which revealed his ignorance of the notational system of ancient Greece, suggesting that this knowledge had been lost with the fall of the Roman Empire in the west.