Voice classification in non-classical music chart that follows. The ranges given below are approximations and are not meant to be too rigidly applied. Some men, in falsetto voice or as a result of certain rare physiological conditions, can sing in the same range as women. These do not fall into the female categories, instead called countertenors within classical music. Within contemporary music, however, the use of the term "tenor" for these male voices would be more appropriate. Teaching voice within non-classical music is an emerging field. Up to this point, voice teachers and voice research have been largely concentrated with classical methods of singing. However,
Women in music which are songs performed with piano accompaniment, or opera, which is singing accompanied by a symphony orchestra in a staged, costumed theatrical production. Classical singers are typically categorized by their voice type, which indicates both their vocal range and in some cases also the "color" of their voice. Examples of voice types that indicate the range of a singer's voice include contralto, mezzo-soprano and soprano (these go from the lowest range to the highest range). Examples of voice types that indicate both the singer's range and the "color" of her voice type are coloratura soprano and lyric soprano. Whereas popular