"Au Clair de la Lune", a traditional French folk song, from a 1910s children's book. It is commonly taught to beginner students of various instruments.
Listen to: An 1860 recording of the song, which is believed to be the oldest recognizable sound recording of a human voice in existence.Image: Louis-Maurice Boutet de Monvel
Audio: Édouard-Léon Scott de Martinville