Passage: The American sheet music publishing industry produced a great deal of ragtime music. By 1912, the sheet music industry had published three popular blues-like compositions, precipitating the Tin Pan Alley adoption of blues elements: "Baby Seals' Blues", by "Baby" Franklin Seals (arranged by Artie Matthews); "Dallas Blues", by Hart Wand; and "The Memphis Blues", by W.C. Handy.

Question: What kind of music did the American sheet music publishing industry produce?
ragtime