Symphony no. 3 "Eroica"

Symphony No. 3 in E-flat major, Op. 55, commonly known as Eroica, is a symphony by Ludwig van Beethoven completed in 1804. The work expands the scale, formal complexity and orchestral demands of the symphony through extensive thematic development, adventurous harmonic language and an unusually large structure, marking a pivotal point in Beethoven's middle period that influenced later nineteenth-century symphonic practice.