Passaggio () is a term used in classical singing to describe the transition area between the vocal registers. The passaggi (plural) of the voice lie between the different vocal registers, such as the chest voice, where any singer can produce a powerful sound, the middle voice, and the head voice, where a penetrating sound is accessible, but usually only through vocal training. The historic Italian school of singing describes a primo passaggio and a secondo passaggio connected through a zona di passaggio in the male voice and a primo passaggio and secondo passaggio in the female voice. A major goal of classical voice training in classical styles is to maintain an even timbre throughout the passaggio. Through proper training, it is possible to produce a resonant and powerful sound.
Most can be divided roughly into three main registers.Richard Miller, The Structure of Singing: System and Art in Vocal Technique (New York: Schirmer Books: A Division of Macmillan, Inc., 1986) 115-149.
There are an additional two registers called falsetto and whistle register (whistle) register, which lie above their head register.Richard Miller, The Structure of Singing: System and Art in Vocal Technique (New York: Schirmer Books: A Division of Macmillan, Inc., 1986) 115-149.Marilee David, The New Voice Pedagogy, 2nd ed. (Lanham, MD: The Scarecrow Press, Inc., 2008) 63. Training is often required to access the pitches within these registers. Men and women with lower voices rarely sing in these registers. Lower voiced women in particular receive very little if any training in the flageolet register. Men have one more additional register called the strohbass, which lies below the chest voice. Singing in this register is hard on the vocal cords, and therefore, is hardly ever used.Richard Miller, The Structure of Singing: System and Art in Vocal Technique (New York: Schirmer Books: A Division of Macmillan, Inc., 1986) 125.
The transitions between these registers are known as the passaggi.
Miller describes the lower middle voice as being made up of a mixture of predominantly chest voice with a small amount of head voice. The upper middle he describes as a mixture of predominantly head voice with a small amount of chest voice.Richard Miller, Training Tenor Voices (New York: Schirmer Books, 1993) 7. This concept holds true for all voice types both male and female. Men have 3 registers separated by 2 passaggi. Each register’s image and shape can be expressed with the shape of a V. (3 V’s, or a double hour glass are acceptable images). Men have 2 passaggi for open vowels and one passaggio for closed vowels. Tenor voices are the highest of the male voice types, with the exception of the countertenor voice, which makes much greater use of the falsetto register. are the next highest voice after tenors, and they are followed by , and then basses. As a result of their lower voices, the ranges for these parts will be lower than that of the ranges listed for tenor above.
The register ranges for a mezzo-soprano voice are as follows:Richard Miller, The Structure of Singing: System and Art in Vocal Technique (New York: Schirmer Books: A Division of Macmillan, Inc., 1986) 135.
The register ranges for a contralto voice are as follows:Richard Miller, The Structure of Singing: System and Art in Vocal Technique (New York: Schirmer Books: A Division of Macmillan, Inc., 1986) 135.
The difference between ranges for different female voice types are relatively small, but it is these small differences that often determine a singer's voice type. There are some areas where the registers appear to overlap. The notes in these areas can be sung in either the chest voice or the middle voice, depending on the singer. This requires training and control. It is better to sing these notes with a mixture of chest voice and head voice. Bringing the chest voice up too far can be very damaging to the female voice.Marilee David, The New Voice Pedagogy, 2nd ed. (Lanham, MD: The Scarecrow Press, Inc., 2008) 65. Where the main register changes occur are the notes of the passaggi.
Lucero et al. have proposed another theory for the production of voice breaks in terms of the acoustic interaction between the vocal fold oscillation and the vocal tract resonances (formant). The interaction may cause frequency and amplitude jumps when the fundamental frequency of the oscillation or a harmonics crosses through a formant. The occurrence of such jumps depends on the cross-sectional area of the epilarynx, which couples the larynx to the downstream vocal tract, and is facilitated by a narrower area.
Voice Specialist Ingo Titze explains, "Register changes may occur voluntarily or involuntarily."Ingo R. Titze, The Principles of Voice Production, Second Printing (Iowa City: National Center for Voice and Speech, 2000) 282. For all singers, mainly classical, negotiating the passaggi can be difficult and can take years to learn how to accomplish well. Classical voice training aims to provide the singer with the tools necessary to move through the passaggi so that the transition between registers sounds seamless and will be unrecognizable to the audience. In his many books on developing the different male and female voice types, Richard Miller gives many exercises for developing the registers and the transitions between them.
The primo passaggio is the first register transition. In the male voice, Miller indicates that this passaggio occurs between the lower middle register, which is a mixture of predominantly chest voice and some head voice, and the upper middle register, which is a mixture of predominantly head voice and some chest voice.Richard Miller, Training Tenor Voices (New York: Schirmer Books, 1993) 7. It is important to note that the primo passaggio is not agreed upon by all voice specialists. As James Stark notes in Bel canto: A History of Vocal Pedagogy, "Richard Miller, who visited numerous Italian voice studios, describes male voices as having a primo passaggio and a secondo passaggio, with a zona di passaggio between them. However, he cites not published literature regarding this theory, and most written sources discuss only one passaggio in male voices... and two passaggi in females (one between chest and middle, and one between middle and head registers)."James Stark, Bel Canto: A History of Vocal Pedagogy (Buffalo: University of Toronto Press, 2003) 83. While the number of passaggi in men appears up for debate, most everyone seems to agree on the existence of at least one passaggio. The most often discussed passaggio in published works is what Miller calls the secondo passaggio, which lies between the upper middle voice and the head voice.Richard Miller, Training Tenor Voices (New York: Schirmer Books, 1993) 7. Because of the discrepancy surrounding the primo passaggio, Miller's zona di passaggio is also up for debate. Miller describes the zona di passaggio as the area between the primo passaggio and the secondo passaggio, which he says is an area that needs to be negotiated carefully.Richard Miller, Training Tenor Voices (New York: Schirmer Books, 1993) 7.
Here are the passaggi for tenor voices, as proposed by Miller:Richard Miller, Training Tenor Voices (New York: Schirmer Books, 1993) 9-13.
Here are the passaggi for baritone, bass-baritone, and bass voices, as proposed by Miller:Richard Miller, Securing Baritone, Bass-Baritone, and Bass Voices (New York: Oxford University Press, 2008) 9.
Unlike the male passaggi, the two female passaggi are widely agreed upon. In his book The Structure of Singing: System and Art in Vocal Technique, Miller also posits, "Many sopranos experience an additional pivotal point midway in the long middle register around C-sharp5 with lower-middle register lying below that pitch, and upper-middle register lying above it."Richard Miller, The Structure of Singing: System and Art in Vocal Technique (New York: Schirmer Books: A Division of Macmillan, Inc., 1986) 142.
Here are the passaggi for female voices, as proposed by Miller:Richard Miller, The Structure of Singing: System and Art in Vocal Technique (New York: Schirmer Books: A Division of Macmillan, Inc., 1986) 134-135.
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