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.
Ode to Joy is best known for its use by Ludwig van Beethoven in the final (fourth) movement of his Ninth Symphony, completed in 1824. Beethoven's text does not use the entirety of Schiller's poem, and reorders some sections.