I need some help finding the real or official name for a song. I first learned this song in 4th-grade music class and have loved it for the rest of my life. I sang it to all of my babies and later to all of their babies. Now, 35 years after that music class, I heard the melody playing at the end of the credits for the movie: "Hillary and Jackie." Played on the cello, it was more beautifu than ever. In the credits, I could not detect which piece or composer applied to this song. Later I saw it at Amazon.com on the movie soundtrack, but it was simply called "The Holiday Song." Put that in a search engine and you can imagine what all you get. Oddly enough, I always remembered every word, just not the title. The words are: Sleep little joy of my heart. Mother's rare lambkin thou art. Go to a land far away. There with the fairies to play. Play on their wonderful land. Play on their beautiful sand. Then from that magical shore, Come back to Mother once more. Now, sleep, sleep baby sleep.

Can anyone help?