A soprano ] is a type of classical female singing voice and has the highest vocal range of all voice types.
 The soprano's vocal range (using scientific pitch notation) is from approximately middle C (C) = 261 Hz to "high A" (A) =880 Hz in choral music, or to "soprano C" (C, two octaves above middle C) =1046 Hz or higher in operatic music.
 In four-part chorale style harmony, the soprano takes the highest part, which usually encompasses the melody.
The contralto voice in opera and classical music has a range which typically lies between the F below middle C (F3) to two Fs above middle C (F5).
 In the lower and upper extremes, some contralto voices can sing from the E below middle C (E3) to two B♭ s above middle C (B♭ 5).
 The contralto voice has the lowest tessitura of the female voices and is noted for its rich and deep vocal timbre.
 True operatic contraltos are very rare.
 The following is a list of contralto singers who have regularly performed unamplified classical or operatic music in concert halls and/or opera houses.
Jane Henschel (born 2 March 1952) is an American operatic mezzo soprano.
 Henschel, who was born in Wisconsin, studied at the University of Southern California, and then pursued further studies in Germany, where she has made her home.
 Her numerous opera appearances include Baba the Turk in Igor Stravinsky's "The Rake’s Progress" with Glyndebourne Festival Opera, the Saito Kinen Festival Matsumoto, and the Salzburg festival; Brangäne in Richard Wagner’s "Die Walküre" with Paris Opéra and the Los Angeles Opera; the Principessa in Giacomo Puccini’s "Suor Angelica" with conductor Riccardo Chailly and the Royal Concertgebouw Orchestra; Blanche de la Force in Francis Poulenc’s "Dialogues des Carmélites" in Amsterdam; Kostelnicka Buryjovka in Leoš Janáček’s "Jenůfa" under Seiji Ozawa in Japan; and the Kabanicka in Janáček’s "Katya Kabanova" at the Salzburg Festival among others.
A voice type is a particular human singing voice identified as having certain qualities or characteristics of vocal range, vocal weight, tessitura, vocal timbre, and vocal transition points ("passaggio"), such as breaks and lifts within the voice.
 Other considerations are physical characteristics, speech level, scientific testing, and vocal register.
 A singer's voice type is identified by a process known as voice classification, by which the human voice is evaluated and thereby designated into a particular voice type.
 The discipline of 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.
 Several different voice classification systems are available to identify voice types, including the German "Fach" system and the choral music system among many others; no system is universally applied or accepted.
A contralto (] ) is a type of classical female singing voice whose vocal range is the lowest female voice type.
A baritone is a type of classical male singing voice whose vocal range lies between the bass and the tenor voice types.
 It is the most common male voice.
 Originally from the Greek βαρύτονος ("barýtonos") , meaning "deep (or heavy) sounding", music for this voice is typically written in the range from the second F below middle C to the F above middle C (i.e. F–F) in choral music, and from the second A below middle C to the A above middle C (A to A) in operatic music, but can be extended at either end.
 The baritone voice type is generally divided into the baryton-Martin baritone (light baritone), lyric baritone, "Kavalierbariton", Verdi baritone, dramatic baritone, "baryton-noble" baritone, and the bass-baritone.
A countertenor (or contra tenor) is a type of classical male singing voice whose vocal range is equivalent to that of the female contralto or mezzo-soprano voice types, generally extending from around G to D or E, although a sopranist (a specific kind of countertenor) may match the soprano's range of around C to C. Countertenors often are baritones or tenors at core, but rarely use this vocal range in performance.
A mezzo-soprano or mezzo ( , ; ] meaning "half soprano") is a type of classical female singing voice whose vocal range lies between the soprano and the contralto voice types.
 The mezzo-soprano's vocal range usually extends from the A below middle C to the A two octaves above (i.e. A–A in scientific pitch notation, where middle C = C).
 In the lower and upper extremes, some mezzo-sopranos may extend down to the F below middle C (F) and as high as "high C" (C).
The bass singing voice has a vocal range that lies around the second E below middle C to the E above middle C (i.e., E–E).
 As with the contralto singing voice being the rarest female voice type, the bass voice is the rarest for males, and has the lowest vocal range of all voice types.
 However, the bass voice is determined not only by its vocal range, but also by its timbre, which tends to be darker than that of a baritone voice.
Tenor is a type of classical male singing voice whose vocal range is between the countertenor and baritone voice types.
 The tenor's vocal range (in choral music) lies between C, the C one octave below middle C, and A, the A above middle C.
 In solo work, this range extends up to C, or "tenor high C".
 The low extreme for tenors is roughly A♭ (two A♭ s below middle C).
 At the highest extreme, some tenors can sing up to two Fs above middle C (F).

Question: Jane Henschel, born on which date, is an American operatic mezzo soprano, a mezzo-soprano or mezzo, a type of classical female singing voice whose vocal range lies between the soprano and the contralto voice types?
Answer: 2 March 1952