Mary Louisa White (2 September 1866 – January 1935)[1] was a British composer, pianist, and educator[2] who invented a Letterless Method of musical notation.
White invented the "Letterless Method" of teaching music to beginners.
The Letterless Method used metal clefs, rings, disks, and black and white buttons for notes, which children could manipulate for tactile learning.
[6] White's papers, including scrapbooks about her musical career created by her mother and sisters, are archived at University College, London.
Her compositions were published by Joseph Williams and Alfred Novello, both of London.