Answer the following question: Information: - A string band is an old-time music or jazz ensemble made up mainly or solely of string instruments. String bands were popular in the 1920s and 1930s, and are among the forerunners of modern country music and bluegrass. - Country music is a genre of United States popular music that originated in the southern United States in the 1920s. It takes its roots from the southeastern genre of United States, such as folk music (especially Appalachian folk music), and blues music. Blues modes have been used extensively throughout its recorded history. Country music often consists of ballads and dance tunes with generally simple forms and harmonies accompanied by mostly string instruments such as banjos, electric and acoustic guitars, dobros and fiddles as well as harmonicas. According to Lindsey Starnes, the term "country music" gained popularity in the 1940s in preference to the earlier term "hillbilly music"; it came to encompass Western music, which evolved parallel to hillbilly music from similar roots, in the mid-20th century. The term "country music" is used today to describe many styles and subgenres. The origins of country music are the folk music of working-class Americans, who blended popular songs, Irish and Celtic fiddle tunes, traditional English ballads, and cowboy songs, and various musical traditions from European immigrant communities. In 2009 country music was the most listened to rush hour radio genre during the evening commute, and second most popular in the morning commute in the United States. - The Skillet Lickers were an old-time band from Georgia, USA. - Clayton McMichen (January 26, 1900 - January 4, 1970) was an American fiddler and country musician. - J. E. Mainer ( July 20 , 1898 -- June 12 , 1971 ) was an American old time fiddler who followed in the wake of Gid Tanner and his Skillet Lickers . - George Riley Puckett (May 7, 1894 July 13, 1946) was an American country music pioneer mostly known for being a member of Gid Tanner and the Skillet Lickers. - James Gideon "Gid" Tanner (June 6, 1885 May 13, 1960) was an American old time fiddler and one of the earliest stars of what would come to be known as country music. His band, the Skillet Lickers, was one of the most innovative and influential string bands of the 1920s and 1930s. Its most notable members were Clayton McMichen (fiddle and vocal) and the blind Riley Puckett (guitar and vocal). What entity does 'j. e. mainer' has the relation 'occupation' with?
Answer:
musician