Ludwig van Beethoven was one of the greatest musicians in the music history. Not only did he inherit the Classical music from Mozart and Haydn, but only started the Romantic music. He was in a hard life, but what happened to him made a music giant, and opened a new music generation!
In his early years, he effected by Classical music. He learned from Haydn and other Classical music composers. That's why Beethoven’s early works
were Classical. Like three piano trios op.1 and three piano sonatas op.2. But by the time went by, Beethoven was not satisfied with the old style. the Pathetique and the Moonlight Sonata had represented only the most obvious
innovations in style and emotional content. As the hearing went down, he knew that he was sort of run out of his time. So he decided to enter a new creative phase, which was called “middle period”. The Third Symphony “Eroica” was
composed at that time. The most obvious signature is heroism. And that was
the same signature as the Romantic music. So, I think that is the beginning of the Romantic music.