In the world of composers, there are those who adhere to strict rules and those who take risks, breaking barriers. The lecture on Béla Bartók will explain how the Hungarian composer, synthesizing folk traditions and modernist experiments, predicted the future of musical avant-garde and became a true master of his time. Béla Bartók's creative path cannot be called simple. His music was not the result of random experiments, but represented a striving for one great goal. As a composer, he followed the idea of synthesizing folk tradition and modernist search. Bartók was one of those who are not afraid of limitations, but rather see them as the key to new sound. In his music, he developed a strict system, trying to fit it into clear and precise frames, creating works that nevertheless always remain alive and multifaceted. The lecture dedicated to this great Hungarian composer will allow for a deeper understanding of his creative philosophy. The main focus will be on analyzing his work "Music for Strings, Percussion, and Celesta." This masterpiece is considered one of the brightest examples of Bartók's mature style. In it, the composer uses ethnographic material that he collected during numerous trips across Hungary. It was folk music that became the foundation of his synthetic approach, which combined elements of folklore with the innovations of that time. Special attention will be paid to exploring how Bartók's ethnographic research influenced his music. How did he use musical folk elements to create an entirely new musical system? Why was he attracted to symmetry and how does it manifest in his works? Why did Bartók become a pioneer in reforming orchestral sound? Answers to these questions will help understand why his works became an integral part of the world's musical heritage and how they influenced the development of music in the post-war decades. Elina Andrianova, composer and music editor of the magazine "Musical Academy," will immerse you in the world of Béla Bartók's music.