A Piano Sonata is a musical composition typically written for solo piano, consisting of multiple movements. It often follows a specific structure, usually including an exposition, development, and recapitulation. This form allows composers to explore themes and variations, showcasing the instrument's capabilities. The Piano Sonata has been a popular genre since the Classical period, with notable composers like Ludwig van Beethoven and Wolfgang Amadeus Mozart contributing significantly to its development. Each sonata reflects the unique style and emotional depth of its composer, making it a vital part of piano repertoire and classical music history.