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''Squillo'' is a technical term for the resonant, trumpet-like sound in the voices of opera singers. It is also commonly called "singer's formant", "ring", "ping", "core", and other terms. Squillo enables an essentially lyric tone to be heard over thick orchestrations, e.g. in late Verdi, Puccini and Strauss operas. Achieving a proper amount of ''squillo'' in any performing context is imperative: too much and the tone veers towards the shrill; too little and the purpose of the ''squillo'' cannot be achieved. ''Squillo'' is easily recognizable by a distinctive brilliant, ringing quality in the timbre of the voice. This perception is caused by the presence of a peak in the 2 - 5 kHz frequency range, to which the human ear is particularly sensitive. The amplification of these particular harmonics is believed to be a result of a narrowing of the Aryepiglottic fold just above the larynx. Voices with naturally acquired ''squillo'', i.e. having naturally strong higher formants, are especially prized in opera because they allow a singer to maintain certain lyric qualities e.g. limpid high notes, and consistency of tone throughout the range etc. even in dramatic singing. Voices with ''squillo'' are also easier to record. Uses of the ''squillo'' includes: * projecting a small timbre e.g. Alfredo Kraus, Juan Diego Flórez * underscoring a dramatically important passage e.g. ''No, non voglio morir'' in ''Sola, perduta abbandonata'' from Puccini's Manon Lescaut * singing through a thickly textured orchestration, e.g. the final bars of ''Libera me'' from Verdi's Requiem, in which a soprano has to compete against a ''tutti'' orchestra and full chorus * supporting a pianissimo note floated over an orchestra (which also demands a secure breath control) e.g. Montserrat Caballé * supporting a long trill * simulating a scream without compromising the timbre, especially in a verismic opera; however it is not unheard that a bona fide scream be used in operatic setting, e.g. Tosca's final jump in Tosca * giving an impression of 'youth' to an aged voice, mainly via a cultivation of the head register, ref. Section IX ''Meine Gesangskunst'', by Lilli Lehmann; best exemplified vocally by Mirella Freni Famous singers who personify this technique include Mariella Devia, Renata Tebaldi, Giuseppe di Stefano, Jussi Björling and Luciano Pavarotti. Certain dramatic singers may also employ ''squillo'' as opposed to volume over the course of a performance, for example Birgit Nilsson. ''Squillo'' may also refer, in current Italian: * when the grammatical gender is masculine (''uno squillo'') word for "ring" (as in "telephone ring"), currently a slang term for missed call * to form a verb a word "squillare" which means "to ring" or "to blare" ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「squillo」の詳細全文を読む スポンサード リンク
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