This program is the first public showing of a film (whose title is from a line in Keats's "Ode on a Grecian Urn") made by Donald H. Andrews and funded by Mrs. William Hale Harkness. Dr. Andrews hypothesizes that all matter is music since all matter in the universe vibrates, and tones and harmonies are made by vibrations. The motion of a plucked violin string and its adjacent string (sympathetic resonance) are shown in slow motion and on an oscilloscope. Dr. Andrews discusses one dimensional harmony, as described by Pythagoras. Two dimensional harmonies are indicated by the fractional overtones of a drum head membrane, which is shown in slow motion and heard electronically enhanced. Three dimensional harmonies result from the contraction and expansion of a sphere; however, differently shaped solids, such as statues, have fractional resonances that produce unique chords or harmonic patterns when vibrating. Four dimensional harmonies come from atom vibration, a wave whose harmonic pattern is displayed by a vibrating sphere. Thus, Dr. Andrews concludes that since an atom is not a particle that vibrates in space, but rather the vibration itself, all matter is in dynamic form or all matter is music. He continues by playing on a piano the chords of tones of atoms produced by different chemical compounds. He also shows and discusses the pattern of Bach's music on an oscilloscope and music composed by Rebekah West Harkness. In conclusion, Dr. Andrews discusses the dynamic form of the human body's symphony and its small chords in the larger universe.