A piano trio is a musical ensemble consisting of three instruments: the piano, the violin, and the cello. This combination allows for a rich blend of harmonies and textures, making it a popular format in classical music. The piano provides a strong harmonic foundation, while the violin and cello add melodic lines and depth. Piano trios have been composed by many famous musicians, including Ludwig van Beethoven and Franz Schubert. They often feature a variety of styles and moods, ranging from lively and energetic to lyrical and introspective. This versatility makes piano trios a cherished part of chamber music repertoire.