Voice type in baroque operas. Except for a few very rare voices (such as the American male soprano Michael Maniaci or singers with a disorder such as Kallmann syndrome), singers called countertenors generally sing in the falsetto register, sometimes using their modal voice for the lowest notes. Historically, there is much evidence that the countertenor, in England at least, also designated a very high tenor voice, the equivalent of the French "haute-contre". Until about 1830, all male voices used some falsetto-type voice production in their upper range. Countertenor voices span a broad range, covering E3 to E5. Countertenor subtypes: Countertenors are often
The Singing Voice of Japan The repertoire of the movement consists mainly in revolutionary songs and those of the working class of different nations. Among registered members of individual committees (distinguished by region, industrial union, and other criterion) of the singing voice of Japan is favored to create new songs and choral pieces in the genre suited to the needs of their group. According to the program adopted in 2013, the National Council of the singing voice of Japan aims the objective to include 500 units and choral circles allover the national territory of Japan. Traditionally, the two initial words of the movement's official name