Piano Sonata No. 2 is a classical music composition written by Sergei Rachmaninoff in 1913. This sonata is known for its rich harmonies and emotional depth, showcasing Rachmaninoff's unique style. It consists of three movements, each with distinct themes and moods, ranging from lyrical to dramatic. The first movement is marked by its sweeping melodies, while the second movement features a more introspective character. The final movement is energetic and virtuosic, culminating in a powerful conclusion. Overall, this sonata is celebrated for its technical challenges and expressive qualities, making it a favorite among pianists and audiences alike.