The inaugural course was held in April 2002 for boys with unchanged voices culminating in a concert in Stirling.

In 1958, the changed voices were finally allowed to join the unchanged voices; the KUBG approved a trial period for their inclusion.

His strange appearance and unchanged voice (he had never acted before) do not raise any suspicions.

The same harsh voice, unchanged by a score of years, rang out in memory, as if repeating the words which had goaded Christian to madness: "Yes, you bloody hound!

"Teddy is fine," he said, voice totally unchanged.

That early boy choir gave annual Christmas and Spring concerts at the Atlanta Municipal Auditorium and was composed of boys with unchanged voices.

"We will starve with them," he said, his mild, uninflected voice unchanged in this enormous statement.

In addition, younger boys and girls with unchanged voices sing in Treble Choir.

The term treble can refer to either a young female or young male singer with an unchanged voice in the soprano range.

A boy soprano is a young male singer with an unchanged voice in the soprano range.