The first reaction should be Brahms ... unlike other composers, he had his own symphony works very early. Brahms' First Symphony was written for 2 1 year, and he didn't finish his First Symphony until the Year of No Confusion. The key is that this product has been written for so long, not because of anything else, but because it has been thinking. He disdains to write simple works, and is determined to take Beethoven as the benchmark, hoping to write works as high as Beethoven. So, when he wrote his first symphony, he was 43 years old ... but it lived up to expectations, and his first symphony was also called the tenth symphony after Beethoven. The man always called himself a classical musician and tried to imitate Beethoven, but it happened. According to the musical form, the appropriate romanticism did not run away. The others ... Mahler and brukner are late bloomers, but they don't know much about them ... so, let's talk about it first. ...