Published the first book about his system, Method of Writing Words, Music, and Plainsong by Means of Dots, for Use by the Blind and Arranged for Them
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Published the first book about his system, Method of Writing Words, Music, and Plainsong by Means of Dots, for Use by the Blind and Arranged for Them
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-17 from Wikipedia. The archived copy is preserved so this citation survives link rot.