The Grateful Dead Expansion Pack is broken into three categories: ensemble, percus-sion and vocal sounds.

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Tsuur music is based on a combination of instrumental and vocal performance - a blending of sounds created simultaneously by both the musical instrument and the human throat.

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American Radass is filled with noodly guitar riffs, propulsive drumming, and a healthy heaping of plaintive, strained vocal harmonies: At times it sounds rather crude, but Dads often manage to streamline their catharsis into sharp, smart songs.

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"When humans laugh, they voice stable sounds: that means the vocal folds are moving in a very regular synchronised way, " Dr Davila-Ross explained.

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It looks and sounds great, with solid vocal work all-around.

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MTV's broadcast turned down sounds of the audience during the playing of the video, but the vocal audience could still be heard.

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On direct examination through the scope, an ENT surgeon (otolaryngologist) can visualize the vocal cords to observe for decreased motion of one or both of the cords as a patient makes certain phonations or sounds.

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