Biography Rachelle Ferrell began singing at the age of six, which contributed to the "development of her startling six-and-change octave range."[2] Her range also includes the ability to reach the whistle register, as stated in an editorial review[3] in which she references her whistle note in "It only took a minute" as "Minnie Riperton-like wailing". She received classical training on violin at an early age and by the time she was a teen, she was able to play the piano at a professional level.

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