Passaggio
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Passaggio is a term used in classical singing to describe the pitch ranges in which vocal registration events occur. Beneath passagio is the Chest voice where any singer can produce a powerful sound, and above it lies the head voice, where a powerful and resonant sound is accessible only with training. Bel Canto describes a primo passaggio and a secondo passaggio in both the male and female voice, Speech Level Singing has something similar. A major goal of classical voice training in Bel Canto type styles is to maintain an even timbre throughout the passaggio. It is generally regarded to be the most difficult register for a singer to sing, as the muscle position is very exerting. However, through proper training, it is possible to produce a resonant and powerful sound.
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