This paper describes the first system designed to allow children to conduct an audio and video recording of an orchestra. No prior music experience is required to control the orchestra, and the system uses an advanced algorithm to time stretch the audio in real-time at high quality and without altering the pitch. We will discuss the requirements and challenges of designing an interface to target our particular user group (children), followed by some system implementation details. An overview of the algorithm used for audio time stretching will also be presented. We are currently using this technology to study and compare professional and non-professional conducting behavior, and its implications when designing new interfaces for multimedia. You’re the Conductor is currently a successful exhibit at the Children’s Museum in Boston, USA. Keywords conducting systems, interactive exhibits, gesture recognition, real-time audio stretching, design patterns