Motivating stories about girls in the series "Chelsea Walk, 6". Mary-Ann is delighted: she leaves home for the first time and goes to the young ladies' boarding house. And most importantly, she will be taught to sing and play the harpsichord there! New school friends, talented teachers, a brilliant performance by 8-year-old Mozart and his sister - all this inspires Mary-Ann to persevere towards her dream and believe that one day she will become an opera singer.