Sergei Rachmaninoff was a Russian composer, pianist, and conductor, born on April 1, 1873. He is known for his lush harmonies and expressive melodies, which have made his works popular in the classical music repertoire. Rachmaninoff's most famous compositions include his Piano Concerto No. 2 and Rhapsody on a Theme of Paganini. After the Russian Revolution, Rachmaninoff emigrated to the United States, where he continued to compose and perform. His music often reflects his deep emotional experiences, blending elements of Romanticism with his unique style. Rachmaninoff passed away on March 28, 1943, leaving a lasting legacy in the world of classical music.