Ludwig van Beethoven

Beethoven's return from Heiligenstadt to Vienna was marked by a change in musical style and is now often referred to as the beginning of his middle (heroic) period.

An excerpt from the article 39 facts about Ludwig van Beethoven

Shortly after Beethoven's breakdown, one of his most joyful works, Symphony No. 2 in D major, Op. 36. During this time, many original works were composed on a grand scale. An important work using this new style was Symphony No. 3 in E flat major, Op. 55, known as "Eroica". The composer created the piece, which he originally called "Bonaparte," because he was fascinated by the heroic leader of the revolution. However, when Napoleon declared himself emperor in 1804, Beethoven scratched Napoleon's name from the title page of the manuscript and called it a Heroic Symphony (Eroica) written in memory of the great man. It was received with mixed feelings.