Treasure and Toil(1967)

Original title: گنج و رنج

A music teacher happens to meet a young man with a beautiful voice. He introduces the young man to the principles of music. The young man, meanwhile, falls for the teacher's daughter, but he has a rival and doesn't dare to step forward and propose. After starting his professional career, the young man quickly progresses, and this time, with confidence, he proposes to his teacher's daughter and marries her.