Context: In addition to these popular examples of house, there has also been a reunification of contemporary house and its roots. Many hip hop and R&B artists also turn to house music to add a mass appeal to the music they produce.

Question: There has been a reunification of contemporary house with what?
Answer: its roots

Question: What genre of artists has recently turned to house music to add mass appeal?
Answer: hip hop and R&B

Question: Why do many hip hop and R&B artists turn to house music?
Answer: to add a mass appeal to the music they produce

Question: What has there been a reunification of contemporary mass with?
Answer: Unanswerable

Question: What genre of artists has recently turned to house music to add music roots?
Answer: Unanswerable

Question: Why do many hip hop and R&B artists turn to roots?
Answer: Unanswerable

Question: What has there been a separation of?
Answer: Unanswerable

Question: Who turns to country music?
Answer: Unanswerable