More than nine hours of music, including treasured songs featuring Ves Ossman (1900), Bert Williams (1906), Al Jolson (1913), Mamie Smith (1921), Sissle and Blake (1921), Kid Ory (1922), Jelly Roll Morton (1923), Blind Lemon Jefferson (1926), Red Nichols (1927), Blind Willie Johnson (1927), Duke Ellington (1928), Paul Whiteman (1928), Ethel Waters (1928), Louis Armstrong (1928), Bessie Smith (1929), Fats Waller (1931), Art Tatum (1932), Red Norvo...