A piece of music always shows the composer and people of that era's feelings about real life. Therefore, to deeply understand the ideological content of the works, we must understand the background and characteristics of the times when the works were produced. For example, The Yellow River Cantata was born at the critical moment of national liberation and revolutionary victory, and both his lyrics and songs reflected a broad national ideal, an appealing call to battle and the author's love for the motherland. Beethoven's third and fifth symphonies and the fifth piano concerto "Egmont" overture and other heroic works were produced under the influence of the French bourgeois revolution, reflecting the people's struggle against tyranny; Chopin's piano works in his mature period reflect his grief and anxiety about the situation in Poland and his deep nostalgia for the suffering motherland after the failure of the Warsaw Uprising in 183-1831. Tchaikovsky's fourth, fifth and sixth symphonies and many romantic music reflect the depressed and hesitant mood and desire for bright happiness of Russian bourgeois intellectuals under the reactionary rule of Alexander II and Alexander III at that time.