That was how Tin Pan Alley worked: Songwriters recorded demos for their publishers, who fed them to specific performers.
Tin Pan Alley composers plugged their songs there, most famously “Daisy Bell,” with its lyric about “a bicycle built for two.”
"hit song writing business," 1908, from tin pan, slang for "a decrepit piano" (1882). The original one was 28th Street in New York City, home to many music publishing houses.
A reference to the popular music industry in the United States; the term is not used as much today as it was a generation or two ago.
Note: Tin Pan Alley is often associated with songwriters who are more interested in making money off their songs than in producing high-quality music.
A telephone call •Chiefly in the expression give someone a tinkle (1938+)verb
To urinate; pee •A nursery use (1950+)