Kansas City Times, March 27, 1919, page 12:

WIRELESS  MUSIC  A  REALITY.
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From   the   Milwaukee   Journal.
    In the United States bureau of standards, in the northern suburbs of the National capital, there was a demonstration of what was agreed to be one of the most remarkable discoveries of the government scientists, and one which promises almost unlimited possibilities of development.
    The discovery--which is the result of a series of experiments extending over more than a year--was the transmission of music by wireless.
    A group of signal corps men and navy radio men grouped themselves about one of the regulation radio telephone sets in a small room in the "wireless building" and played "Till We Meet Again" and other musical hits, vocal and instrumental, on a phonograph placed directly before the mouthpiece of the wireless phone. The records were played with the ordinary loud tone steel needles.
    The music was transformed into electric waves and passed through the air to another phone set placed in the bureau auditorium, in the main building, about six hundred feet distant. Here the electrical waves transformed once more into sound waves, increased greatly in volume, and the visitors seated in va­rious parts of the 50x80-foot auditorium were treated to an aerated rendition of the music which was being created many yards away. The renditions received in the auditorium were as clear and distinct as if the phonograph were placed but a few feet away, each note being given its full value and expression.
    According to Doctor Stratton, director of the bureau of standards, experiments are to continue along this line until it will be possible to transmit music, both vocal and instrumental, by wireless for any distance which it is now possible to utilize the wireless telephone.
     "When that time comes," said he, "and it will not be far in the future, we will be able to sit comfortably in our homes at almost any distance and listen to the Boston or Chicago symphony orchestra playing in those cities, or participate in any great musical festival of the country; or it will be easily possible for Washington merry-makers to stage a dance to the music by an orchestra on one of New York's roof gardens."