Symphony No. 4 is the fourth symphony by Austrian composer Gustav Mahler, completed in 1900 and first performed in 1901. Musically it presents a lighter, more classically influenced orchestration than his earlier expansive symphonies, employing transparent textures, folk-like melodies and a distinctive final movement that adds a soprano singing a childlike text, marking a transitional point in Mahler's output between his large-scale late-Romantic works and his later, more austere symphonies.