Since much of Fischinger's work involved putting music to geometric animations, Google builds a basic synth / sequencer for you to play with. Simply select one of the instruments and begin clicking to create a pattern that'll produce a sound that's unique to you. As each note plays, geometric animations will jump out, although it's worth watching one of Fischinger's originals just to see the scope of his achievement. An Optical Poem, for instance, was produced in 1938 by hand, which makes you really appreciate the scope of human ingenuity.