Blind musicians Blind musicians Blind musicians are singers or instrumentalists, or in some cases singer-accompanists, who are legally blind. Historically, many blind musicians, including some of the most famous, have performed without the benefit of formal instruction, since such instruction relies extensively on written musical notation. However, today there are many resources available for blind musicians who wish to learn Western music theory and classical notation. Louis Braille, the man who created the braille alphabet for the blind, also created a system of classical notation for the blind called Braille music. This system allows the blind to read and write music just
Point plotting Point plotting Point plotting is an elementary mathematical skill required in analytic geometry. Invented by René Descartes and originally used to locate positions on military maps, this skill is now assumed of everyone who wants to locate grid 7A on any map. Using point plotting, one associates an ordered pair of real numbers ("x", "y") with a point in the plane in a one-to-one manner. As a result, one obtains the 2-dimensional Cartesian coordinate system. To be able to plot points, one needs to first decide on a point in plane which will be called the "origin", and a couple