Chorded keyboard (a writing system for the blind) uses either 6 or 8 tactile 'points' from which all letters and numbers are formed. When Louis Braille invented it, it was produced with a needle holing successively all needed points in a cardboard sheet. In 1892, Frank Haven Hall, superintendent of the Illinois Institute for the Education of the Blind, created the Hall Braille Writer, which was like a typewriter with 6 keys, one for each dot in a braille cell. The Perkins Brailler, first manufactured in 1951, uses a 6-key chord keyboard (plus a spacebar) to produce braille output, and has been
Eyesight to the Blind the 1972 "Tommy" orchestral performance, Richie Havens sang the vocals on the song, backed by the London Symphony Orchestra. In the 1975 film version of "Tommy", Eric Clapton and Arthur Brown perform the piece. Several live performances by the Who are in release. Other artists who recorded the song include: Eyesight to the Blind "Eyesight to the Blind" is a 12-bar blues song written and recorded in 1951 by Sonny Boy Williamson II (Aleck "Rice" Miller). He also recorded the related songs "Born Blind", "Unseeing Eye", "Don't Lose Your Eye", and "Unseen Eye" during his career. The Larks, an American