Task: Explanation
Input (English): Earl Poole Ball (Jr) (born March 12, 1941) is an American singer-songwriter, pianist, music producer and actor. His musical work spans the Ameripolitan, Country, Americana and Rockabilly genres. He has performed with many well known American musicians, including Buck Owens & The Buckaroos, Gram Parsons, Carl Perkins, Merle Haggard, Freddie Hart, Marty Stuart, Phil Ochs, Michael Nesmith, Marty Robbins, Wynn Stewart, The Flying Burrito Brothers and The Byrds. He is best known for his 20 years spent touring and recording with Johnny Cash. (1977-1997) Question: What type of music do Freddie Hart and Earl Poole Ball both write? Answer: Country
Output (English):  His musical work spans the Ameripolitan, Country, Americana and Rockabilly genres.