Like her subject, Ms. Bennett has an overbite with a slight lisp and sings with lots of vibrato, especially when nervous.

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His pitch is sufficiently accurate so that he uses vibrato only when he needs to as an effect that can be drawn on for any number of aesthetic reasons.

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His playing blended both the staccato the way he hit notes, with a rather slow and even vibrato and the curvature of the long, flowing phrase.

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One of Mr. Daniels's arias, with its lower tessitura, didn't project, and Ms. Harvey's sometimes excessive vibrato seemed calculated to reach the back of the hall, no matter what.

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Combine that enlightening declaration with some sentimental sweeping strings, the predictable key change mid-way through, plus a lot of vibrato and you have the usual ingredients for a formulaic hit.

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Slim cut his first single, Scufflin, in 1966 and became a Chicago blues fixture in his own right, developing a guitar style that blended a distinct vibrato with a slide-guitar-like sound formed with his bare fingers against the strings.

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The photo in question depicted shrieking white women (perhaps part of fan clubs "Girls Who Give In When Billy Gives Out" or "The Vibrato's Vibrators") clawing at the musician, and it found B barred from clubs and compromised his once-promising Hollywood film contract--downgrading it to a few peripheral roles that were edited out for Southern versions.

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