The composer only stayed on earth for 57 years and completed more than one hundred works in his lifetime. His major works include 9 symphonies; dozens of orchestral pieces ("Egmont Overture" is the most famous); 5 piano concertos, one violin concerto; 5 other concertos; and 32 piano sonatas (Passionate, Moonlight, Pathétique, Dawn, The Tempest, etc. are the most famous); 80 pieces of chamber music; 1 opera "Fidelio"; 1 oratorio; 2 masses, etc. Beethoven believed in harmony and admired heroes, and created a large number of outstanding works full of the flavor of the times, such as: the symphonies "Hero" and "Destiny"; the overture "Egmont"; and the piano sonatas "Pathétique" and "Moonlight" , "The Tempest", "Passion" and more. He has a distinctive personality and has developed greatly compared with his predecessors. In terms of musical performance, he touched almost all music genres at that time; greatly improved the expressive power of the piano, giving it a symphonic dramatic effect; and made the symphony an important music form that directly reflects social changes. Beethoven gathered the culmination of classical music and at the same time opened up the path for music in the Romantic period. He played a decisive role in the development of world music and was revered as the "Saint of Music".