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.
Completed in 1824, the Symphony No. 9 in D minor, Op. 125 âChoralâ was the last complete symphony composed by Ludwig van Beethoven. It incorporated part of An die Freude (âOde to Joyâ), a poem by Friedrich Schiller written in 1785. In the first performance of Symphony No. 9 in D minor, Beethoven pounded out the beats he couldnât hear (his hearing now completely gone).