It was one of the first automatic playing machines, similar to the later Orchestrion. A mechanical orchestrion, manufactured in Germany, was installed to provide music in the hall. Together with a smaller orchestrion, these two instruments could replace an entire orchestra. Mechanical organs include the barrel organ, water organ, and Orchestrion. Such larger instruments are called a fairground organ, band organ or orchestrion. The Tower's orchestrion is now in the collection of Thinktank, Birmingham Science Museum.