Hello,
In this opportunity I am going to share with you some information about Braille music, because my thesis project for my graduate studies is about teaching Braille music to blind children in my country, because there are almost non professors nor schools dedicated to this matter there:
Braille music system uses the same symbols used on literary Braille created by Louis Braille. This allows to notate music using Braille cells so that it can be read by blind musicians.
Braille music system, as literary Braille, is based on the use of six dots to configure one letter, abbreviation, or symbol.
This is a picture of the position of the six dots:
Almost all the music that exists can be translated to Braille music notation, because Braille notation is a very complete system that has its own rules and symbols that enables to describe all the music information found on the original notation.
Both systems of music notation, even though very different from each other, are equally difficult to learn. In my opinion, it is more on the execution where the difficulty on Braille music it’s bigger.
Here I leave an example from literary Braille made by myself, especially for you:
(It means: Hi EXPANDERS!)
This information is of public domain, and the first picture I used it was taken from Wikipedia
http://en.wikipedia.org/wiki/Braille_music