Through her early years, although both parents were very active musically, Nadia would get upset by hearing music and hide until it stopped. In 1892, when Nadia was five, Raissa became pregnant again. During the pregnancy, Nadia's response to music changed drastically. "One day I heard a fire bell. Instead of crying out and hiding, I rushed to the piano and tried to reproduce the sounds. My parents were amazed." After this, Boulanger paid great attention to the singing lessons her father gave, and began to study the rudiments of music.