If our eyes only saw frames (IE: 30 images a second), like a single lens reflex camera, we'd see images pop in and out of existance and that would really be annoying and not as advantagous to us in our three dimensional space and bodies.
In the Vienna of the second half of the 18th century, in addition to Haydn and Mozart, three symphonic composers, namely Leopold Hoffmann, Carl Ditters von Dittersdorf and J.B. Vanhal helped further the development of the symphony.
Both the image and the image making deserve some further attention. Just as Edison did not invent electricity, Sousa did not invent the band. Two generations of Americans had been enjoying band music by the 1860s, the decade during which young John Philip grew up in Washington.