'''Tumbling strain''' is a vocal feature of [[music]] common to many types of music, especially ethnic music. It is characterized by a phrase of singing starting high in [[pitch]] and getting lower as the user runs low on breath. | '''Tumbling strain''' is a vocal feature of [[music]] common to many types of music, especially ethnic music. It is characterized by a phrase of singing starting high in [[pitch]] and getting lower as the user runs low on breath. |