1. Ludwig van Beethoven (December 16 or 17, 1770 - March 26, 1827), was born in the Holy Roman Empire - Elector of Cologne Born in Bonn, China, he is one of the representatives of the Vienna Classical School and a composer of the European Classical Period. Beethoven created a wide range of themes throughout his life, and his important works include 9 symphonies, 1 opera, 32 piano sonatas, 5 piano concertos, multiple orchestral overtures, and violin and cello sonatas. Because of his significant contribution to classical music, his development and innovation of sonata form and symphony suite structure, he was honored by later generations as the "Music Saint" and the "King of Symphony"

2. Wolfgang ·Wolfgang Amadeus Mozart (January 27, 1756 - December 5, 1791), born in Salzburg, Austria, was an Austrian composer during the classicism period and one of the representatives of the Vienna Classical School. First, Mozart completed more than 600 musical works of different genres and forms in his short 35-year life, including operas, symphonies, concertos, sonatas, quartets and other ensemble and duet works, a large number of instrumental pieces, Solo pieces, etc., covering almost all musical genres at that time. His music reflects the style of the classical period, perfected a variety of musical genres, and together with Haydn, established the Viennese classical music school.

3. Johann Sebastian Bach (March 21, 1685 - July 28, 1750), born in Eisenach, Thuringia, Germany, Baroque He was a German composer and keyboard player during the period. His musical works were of various genres. His vocal works were mainly religious music, while his instrumental works covered various genres including solos, concertos, orchestral ensembles, and ensembles, as well as a large number of works. . Because Bach's works had a positive impact on the development of modern European music, he is called the "Father of Western Music"

4. Musician is a broad term. Simply put, it means focusing on music. Artists in the field. It includes the people who create music and those who perform it. People who sing are also considered musicians, but they have a special title of singers. It can also be said to be a successful person who specializes in music activities and brings spiritual beauty to people.