Assertion: country music's song | /r/HasProperty | recorded by marty robbins
Facets:
value: in september
type: TEMPORAL
Source sentences:
text: Western music, influenced by the cowboy ballads, New Mexico, Texas country and Tejano music rhythms of the Southwestern United States and Northern Mexico, reached its peak in popularity in the late 1950s, most notably with the song "El Paso", first recorded by Marty Robbins in September 1959.