It's just a crossword puzzle, why does it need a title?

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Across
  1. 5. Instrument that Stephen Foster learned to play as a child
  2. 7. Stephen Foster came into contact with this well-known troupe
  3. 8. A form of music that was well-received in the pre-Civil War South
  4. 9. One of the main cities where Ragtime first gained popularity
  5. 11. Known as "King of Ragtime"
  6. 12. Musical reviews that replaced minstrel shows after they lost their appeal
  7. 15. A popular music style of the early 20th century
Down
  1. 1. A type of show where white actors perform in blackface
  2. 2. One of the earliest well-known composers in American popular music
  3. 3. Song written by Scott Joplin
  4. 4. Stephen Foster's first well-known song
  5. 6. A type of shuffling clog dance that might have given Ragtime its name
  6. 10. The paper that music was written down on (how Ragtime got its name)
  7. 13. Ragtime had an important influence on the ______ style of piano playing
  8. 14. Form of "The Entertainer"