" Piping down the valleys wild, Piping songs of pleasant glee, On a cloud I saw a child, And he laughing said to me: "Pipe a song about a Lamb !" So I piped with merry cheer. "Piper, pipe that song again;" So I piped: he wept to hear. "Drop thy pipe, thy happy pipe; Sing thy songs of happy cheer !" So I sang the same again, While he wept with joy to hear...