What is the primary function of a conductor in an ensemble?

The primary function of a conductor in an ensemble is to lead the ensemble. The conductor plays a crucial role in interpreting the music, setting the tempo, and ensuring that all musicians are in sync with each other. Through gestures and cues, the conductor communicates with the ensemble, guiding them through dynamics, phrasing, and interpreting the emotional content of the music. This leadership helps create a cohesive and polished performance, allowing the musicians to focus on their playing while following the conductor's direction.

Other roles like composing music, performing solos, and playing all instruments do not encompass the main responsibilities of a conductor. Composing is focused on creating new music, which is distinct from leading and coordinating a group. Performing solos involves showcasing individual talent rather than uniting the group as a whole. Playing all instruments is impractical within the context of an ensemble, where specialized musicians focus on their respective instruments for effective collaboration. Thus, the correct answer highlights the conductor's leadership role essential for the ensemble's success.