Orchestral composition is the art of creating music specifically for an orchestra, which typically includes strings, woodwinds, brass, and percussion instruments. Composers use various techniques to blend these different sounds, creating a rich and dynamic musical experience. The orchestral score is written in a way that each instrument plays a unique role, contributing to the overall harmony and texture of the piece. Composers like Ludwig van Beethoven and Wolfgang Amadeus Mozart are renowned for their orchestral works, which often feature complex melodies and intricate arrangements. The process involves not only writing the music but also considering how the instruments interact, ensuring that the final performance is cohesive and expressive.