Nightingale Song
Saeta del ruiseñor (original)
Joselito is a naughty boy that sings like the nightingales. He lives in a little town near Sevilla. He has a great success due to his magnificent voice and then he can practice charity with a girl from his town.
Starring Joselito, Ivy Bless, Archibald L. Lyall, Vicky Lagos, Manuel Zarzo, Mari Carmen Alonso, Aníbal Vela, Emma Picó, Félix Briones, Manuel Guitián
Watch "Nightingale Song" on FlixOlè released in 1957. It's a drama and family movie, and has a rating of 5.5 out of 10 from Imdb which is fairly okay for this kind of movie.