An orchestra is a large ensemble of musicians who play together, typically consisting of string, brass, woodwind, and percussion instruments. Orchestras perform a wide range of music, from classical symphonies to contemporary compositions, often under the direction of a conductor. The rich sound produced by an orchestra can evoke a variety of emotions and is a central feature of many musical performances. Orchestras can vary in size and composition, with some being small chamber orchestras and others being large symphony orchestras. Notable orchestras include the Berlin Philharmonic and the New York Philharmonic, both renowned for their exceptional musicianship and contributions to the world of music.