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World records and extremes of vocal range. 1  The highest vocal range in the world, according to the Guinness Book of World Records, is that of Georgia Brown; a Brazilian female singer who produces unusually high pitches using a whistle register. Her range extends eight octaves, from G2 to G10.
While the chart is extremely informative, it is important to remember that it represents the recorded vocal range of each of these artists, not necessarily their actual range. This also doesn't define Axl Rose as the greatest singer of all time. Vocal range is a great indicator of a vocalist's talent, but there is much more that goes into it: tone, creativity in melody composition, lyrics and dynamic abilities, to name a few. It also helps when a vocalist has a great band or composition behind them.