It involved filming a dance performance, with an orchestral conductor in shot in the corner of frame, so that the live orchestra at the screening before an audience would then see and follow the conductor's timing.
The company made at least twelve films using this system, and they became very popular with audiences.
[1] The films covered dances such as the tango, foxtrot, quickstep and ragtime, involving amateur ballroom dance champions, as well as footage of American-born music hall performer Fanny Fields.
[2] However, the company was not financially successful, and Rausch was declared bankrupt.
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