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,
Singing in the Dark name is "David") singing during a synagogue service. In one crucial scene in the movie, Leo imagines himself ascending the bimah of a ruined synagogue in Europe, singing the ancient Jewish prayer "El male rachamim" in memory of all the Jews who died in the Holocaust. By actually returning to the synagogue as a cantor, the film shows how he is restoring "the sacred music of a vanquished culture to a living Jewish community." The National Center for Jewish Film notes that this "important and virtually unknown independent film" is one of the first American movies to focus on the