Voice Types

A voice type is a particular kind of human singing voice perceived as having certain identifying qualities or characteristics. Voice classification is the process by which human voices are evaluated and are thereby designated into voice types. These qualities include but are not limited to: vocal range, vocal weight, vocal tessitura, vocal timbre, and vocal transition points such as breaks and lifts within the voice. Other considerations are physical characteristics, speech level, scientific testing, and vocal registration.^[1] The science behind voice classification developed within European classical music and is not generally applicable to other forms of singing. Voice classification is often used within opera to associate possible roles with potential voices. There are currently several different systems in use including: the German Fach system and the choral music system among many others. No system is universally applied or accepted.^[2] This article focuses on voice classification within classical music. For other contemporary styles of singing see: Voice classification in non-classical music.

Voice classification is a tool for singers, composers, venues, and listeners to categorize vocal properties, and to associate possible roles with potential voices. There have been times when voice classification systems have been used too rigidly, i.e. a house assigning a singer to a specific type, and only casting him or her in roles they consider belonging to this category.^[3]

A singer will ultimately choose a repertoire that suits their instrument. Some singers such as Enrico Caruso, Rosa Ponselle, Joan Sutherland, Maria Callas, Ewa Podles, or Plácido Domingo have voices which allow them to sing roles from a wide variety of types; some singers such as Shirley Verrett or Grace Bumbry change type, and even voice part over their careers; and some singers such as Leonie Rysanek have voices which lower with age, causing them to cycle through types over their careers. Some roles as well are hard to classify, having very unusual vocal requirements; Mozart wrote many of his roles for specific singers who often had remarkable voices, and some of Verdi’s early works make extreme demands on his singers.^[4]

A note on vocal range vs. tessitura: Choral singers are classified into voice parts based on range; solo singers are classified into voice types based in part on tessitura – where the voice feels most comfortable for the majority of the time.^[5]