It may well be that the peculiar value set. [fact]
It may well be that the peculiar value set on gardens in the later Middle Ages is a legacy of the Crusaders, who also appear to have brought back the arts of lyric poetry and song from the Middle East. It was in this diminutive meadow then, behind the protective wall of the castle, that the troubadour art flourished, and the voices of the birds were often woven into their songs.
Schafer, Murray R, The Soundscape- Our Sonic E…, loc. 379