pitches from musical soundtracks.

Introduction

Introduced in 1912, the Edison Home Projecting Kinetoscope was one of the first home theater devices. Although it used a 22 mm film format, the image size was nearer to 6 mm, the smallest ever to be commercially released. The film was perforated not only on the edges, but also in two interior rows, dividing each frame into three separate images. The film was run through once for the first set of outside images; the gate was shifted over

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