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