He missed a beat by not going further back than the end of WWII. A lot of the early 19th Century was dominated by Stephen Foster, “The father of American music”, because his music, in sheet music form, was both memorable and could be played on the common upright piano, invented in the year of his birth.
20 years after the war, Tin Pan Alley arose in New York, with a resultant explosion in production of sheet music of popular songs. This got its second wind with the end of World War I, and the roaring twenties.
Just about the time of the Great Depression, radio entered the scene, which both killed Tin Pan Alley and made the big bands possible, as they could stay put instead of traveling all over the place. And yet their popularity and concomitant wealth meant that they *could* travel, so they did.
And this lasted until WWII, where gasoline rationing and travel restrictions eventually forced them back on the radio.