Assertion: upright bass | /r/HasProperty | standard bass instrument
Facets:
value: in the early 1950s
type: TEMPORAL
value: in traditional country western music
type: LOCATION
Source sentences:
text: An upright bass was the standard bass instrument in traditional country western music.
text: In the early 1950s, the upright bass was the standard bass instrument in the emerging style of rock and roll music, Marshall Lytle of Bill Haley & His Comets being but one example.