Voice type C). In the lower and upper extremes some contralto voices can sing from D3 (the D below middle C) to B5 (the second B-flat above), one whole step short of the soprano "high C". Contralto tessitura: The contralto voice has the lowest tessitura of the female voices. Contralto subtypes: Contraltos are often broken down into three subcategories: coloratura contralto, lyric contralto, and dramatic contralto. A soprano sfogato is a contralto who has an extended high range reaching the soprano "high C". Countertenor range: The countertenor is the highest male voice. Many countertenor singers perform roles originally written for a castrato
Alfred Wolfsohn Voice Research Centre to me, and though I only went for a short period of time, it helped enormously. It gave me confidence in other areas of my life. Whilst some students, like Blue, attended for a short period, often for one singing lesson per week over several months, others spent entire days at the Centre, having singing lessons and observing others. These included Jenny Johnson, whose voice typified for Wolfsohn what he believed was possible for every human voice trained in his approach to extended vocal technique. Under Wolfsohn's tutelage, Jenny Johnson developed a vocal range of almost 6 octaves, as well