A conductor in music is a person who leads a musical ensemble, such as an orchestra or choir. They use hand gestures and facial expressions to communicate tempo, dynamics, and expression to the musicians. The conductor ensures that all performers play together cohesively, interpreting the music as a unified group. Conductors often study music theory, composition, and performance to develop their skills. They may work with various ensembles, including symphony orchestras, chamber groups, and choral societies. A conductor's role is crucial in shaping the overall sound and interpretation of a musical piece.