Gustav Mahler (1860-1911) was an Austrian composer and conductor, primarily associated with the late Romantic and early modernist eras. He is renowned for his symphonies and orchestral songs, which often explore profound existential themes and human emotions. Mahler's music is characterized by its expansive structure, innovative orchestration, and the integration of song and symphony, reflecting his background as a conductor and his deep understanding of vocal music. Notable works include his symphonies, particularly the Symphony No. 2 ("Resurrection"), Symphony No. 5, and Symphony No. 9, as well as his orchestral song cycles "Das Lied von der Erde" and "Kindertotenlieder." His symphonies often feature large orchestras and intricate thematic development, pushing the boundaries of orchestral music at the time. Mahler's impact on music is significant; he influenced subsequent composers, including Alban Berg and Arnold Schoenberg, and is often regarded as a bridge between late Romanticism and 20th-century modernism. His exploration of emotional depth and innovative use of form has resonated through generations, making him a central figure in the evolution of symphonic music. His work has gained immense popularity in the 20th and 21st centuries, solidifying his legacy.