Home page of NDSU Extension Service - Mercer County. NDSU Extension Service in Mercer County gives local residents easy access to the resources and expertise of North Dakota State University. Through educational programs, publications, and events, extension agents deliver unbiased, research-based information to Mercer County citizens.
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.
She is mostly famous for singing cover songs and her high vocal range. Her voice can go from contralto and soprano. And just like Freddie Mercury, she is known to use her range in one song. Matthew Bellamy is the singer/songwriter/piano and guitar player of the alternative/progressive rock band Muse.