Country music is known for its ballads and dance tunes (i.e., "honky-tonk music") with simple form, folk lyrics, and harmonies generally accompanied by instruments such as banjos, fiddles, harmonicas, and many types of guitar (including acoustic, electric, steel, and resonator guitars).Though it is primarily rooted in various forms of American folk music, such as old-time music and Appalachian music, many other traditions, including Mexican, Irish, and Hawaiian music, have had a formative influence on the genre. Blues modes from blues music have been used extensively throughout its history as well.
Once called "hillbilly music", the term country music gained popularity in the 1940s. The genre came to encompass western music, which evolved parallel to hillbilly music from similar roots, in the mid-20th century.
