The card bore the date “September 12, 2000,” and contained the longest programme of music I had ever seen. It was as various as it was long, including a most extraordinary range of vocal and instrumental solos, duets, quartettes, and various orchestral combinations. I remained bewildered by the prodigious list until Edith’s pink finger-tip indicated a peculiar section of it, where several selections were bracketed, with the words “5 P. M.” against them; then I observed that this prodigious programme was an all-day one, divided into twenty-four sections answering to the hours. There were but a few pieces of music in the “5 P. M.” section, and I indicated an organ piece as my preference. “I am so glad you like the organ,” said she. “I think there is scarcely any music that suits my mood oftener.” She made me sit down comfortably, and, crossing the room, so far as I could see, merely touched one or two screws, and at once the room was filled with the music of a grand organ anthem; filled, not flooded, for, by some means, the volume of melody had been perfectly graduated to the size of the department. I listened, scarcely breathing, to the close. Such music, so perfectly rendered, I had never expected to hear. “Grand!” I cried, as the last great wave of the sound broke and ebbed away into silence. “Bach must be at the keys of that organ; but where is the organ?” “Wait a moment, please,” said Edith; “I want to have you listen to this waltz before you ask any questions. I think it is perfectly charming;” and as she spoke the sound of violins filled the room with the witchery of a summer night. When this also ceased, she said: “There is nothing in the least mysterious about the music, as you seem to imagine. It is not made by fairies or genii, but by good, honest, and exceedingly clever good hands. We have simply carried the idea of labor-saving by co-operation into our musical service as into everything else. There are a number of music rooms in the city, perfectly adapted acoustically to the different sorts of music. These halls are connected by telephone with all the houses of the city whose people care to pay the small fee, and there are none, you may be sure, who do not. The corps of musicians attached to each hall is so large that, although no individual performer, or group of performers, has more than a brief part, each day’s programme lasts through the twenty-four hours. There are on that card for to-day, as you will see if you observe closely, distinct programmes of four of these concerts, each of a different order of music from the others, being now simultaneously performed, and any one of the four pieces now going on that you prefer, you can hear by merely pressing the button which will connect your house-wire with the hall where it is being rendered. The programmes are so co-ordinated that the pieces at any one time simultaneously proceeding in the different halls usually offer a