Voice type in women. The size and development of adult lungs also changes what the voice is physically capable of doing. From the onset of puberty, the human voice is in an in-between phase where it is not quite a child's voice nor an adult one yet. This is not to suggest that the voice stops changing after puberty. Different singers will reach adult development earlier or later than others, and as stated above there are continual changes throughout adulthood as well. Treble can refer to either a young female or young male singer with an unchanged voice in the mezzo-soprano range.
The Singing Voice of Japan explicitly dedicated to the support of JCP is Choir of JCP-fans (), established in 2011 in Kyoto by veteran activists of the movement and directed by Tadao Yamamoto, composer, accordionist, choir director and an ordinary member of the National Council of The Singing Voice of Japan: the choir witnesses the historical connection calling itself by the acronym of English official name of the party. Its repertory and artistic activity are strongly linked in the movement, and in various cultural events organized by the Party, the Choir of JCP-fans appears as an element among the joined choirs of the volunteer singers