In the dingy Brill Building, day and night, swarm the unsung individuals of the singing empire, in every respect unique and little known outside its own realm. There are 320 firms in New York City that publish music. Of these a dozen are highly successful, another half dozen do well and the rest are mostly shoestring affairs, picking up the ragged edges and discards of the leaders. The _sine qua non_ of a music publisher is his demonstrating rooms. These are usually tiny cubicles scarcely larger than the battered upright pianos they contain, each manned by a key-thumper who can transpose, ad lib and torture a melody into any tempo for any purpose from a soft-shoe dance accompaniment to a cry for help that would break your heart. Getting these songs before the public, or as the trade terms it, the "plug," is perhaps the soul of the industry. There are scores of men and women infesting every radio station and theatre where "flesh" performances still remain. Their business is to get their songs sung or played or whistled or even ground out on a hand organ. The big stars are hard to approach and the business, which is organized, has long ago put a foot down on what was formerly an elaborate system of bribery, so that personality, pleading, pull, as often as actual merit and fitness, go to place songs with leading orchestras and ace headliners. But a late development in the business, one which suspiciously smacks of a restraint of trade violation, is the practice of some publishers of giving a stock interest in their firms to noted crooners, band leaders and disk jockeys, who in return "plug" the latest publications of the companies in which they are interested. An offshoot of this kind of tie-up, which has the further effect of keeping the compositions of the unknown or the unelect from the market, is off-the-record agreements between the principal publishing houses tied up with singers and band leaders to play only the product of the companies in the charmed circle. You scratch my back and I'll scratch yours. The demonstrating offices are besieged by ambitious youngsters, failures and never-could-be's who think that they can find a "Yes, We Have No Bananas" or "Smoke Gets in Your Eyes" to draw them to the top overnight. These are inconsequential persons and they are insulted and refused, but they break through here and there. For a bad singer, all songs are bad. Yet it is in the nature of the stage-struck never to admit that they have failed, but to carry the deathless conviction that it is the "material." They haunt the music publishers, fighting for a chance at the latest, always with high expectations that this time this will be it. So the Brill Building, overrun as it was for years with every element of the prize ring and the sheet music world and its vocalists and hoofers and bandsmen, naturally became a beehive for minor agents, who pick up shabby fees from unimportant performers.