... was an invention that did not last long in the world of film. Next was the use of a vitaphone, which also did not play a lasting role in the movie industry. Following the use of the vitaphone was the use of live musicians. The live music came about as the movies were becoming a little more common in the mid 1930's. The films began to be played commercially in Vaudeville houses, cafes, and ... then punched into the film to click at any given metronome beat. The composer measures this beat by dividing the figure, 1440, by whatever metronome speed he wants and the resulting figure is the f...

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