An orchestral score is a written representation of music specifically composed for an orchestra. It includes parts for various instruments, such as strings, woodwinds, brass, and percussion, allowing conductors and musicians to understand their roles in a performance. Each instrument's part is typically notated on a separate staff, while the full score combines all parts into one comprehensive document. Orchestral scores are essential for performances of classical music, film scores, and other large-scale compositions. They guide the conductor, like Leonard Bernstein or Gustavo Dudamel, in coordinating the ensemble and ensuring that all musicians play in harmony.