 In 1936, he predicted musical machines that would be able to perform music as soon as a composer inputs his score.These machines would be able to play "any number of frequencies," and therefore the score of the future would need to be "seismographic" in order to illustrate their full potential.In 1939, he expanded on this concept, declaring that with this machine "anyone will be able to press a button to release music exactly as the composer wrote it—exactly like opening up a book."