Now the sun rose higher and the heat of the day increased, and the whole company remained in the pleasant shade; and as a thousand birds were singing among the verdant branches, someone asked Francesco [Landini] to play the organ a little, to see whether the sounds would make the birds increase or diminish their song. He did so at once, and a great wonder followed: for when the sound began many of the birds were seen to fall silent, and gather around as if in amazement, listening for a long time: and then they resumed their song and redoubled it, showing inconceivable delight, and especially one nightingale, who came and perched above the organ on a branch over Francesco's head.