Vocal range is never used to refer to a solo vocalist. Children's voices, both male and female, are described as "trebles", although boy soprano is widely used as well. Vocal range Vocal range is the measure of the breadth of pitches that a human voice can phonate. Its most common application is within the context of singing, where it is used as a defining characteristic for classifying singing voices into groups known as voice types. It is also a topic of study within linguistics, phonetics, and speech and language pathology, particularly in relation to the study of tonal languages and certain types
The Singing Voice of Japan The Singing Voice of Japan The singing voice of Japan (, "Nihon no Utagoe" / うたごえ運動, "Utagoe-undō") is the name of a social and political movement that emerged after World War II in Japan and based on musical and choral activities of the working class of the entire nation. On the ideological position of communism or democratic socialism, activists of the movement organize choral circles in factories, in schools and in their residential areas. The movement reached its peak in the years 1950–60. Japanese singer Akiko Seki () is generally regarded as the founder of the Singing Voice of Japan.