Hi everyone. Sorry for being off-topic, but this list has probably the highest amount of actual braille users with some affinity to free software that I know of, so please excuse my shameless plug.
I am currently working on a project to automatically parse and understand braille music code such that it can be converted to other formats like LilyPond or MusicXML. The project is called BMC which stands for Braille Music Compiler. It has not been officially released yet, but it can already do some quite interesting things. As an example for those of you that can read braille music code, below is a piece from J.S. Bach (variation 13 of the Goldberg Variations, BWV988) which can already be parsed and translated by BMC. It is encoded with Unicode Braille to avoid problems with differing international braille tables. If you can not read the content of the file below on the Linux console, you might want to have a look at the console-braille package from Debian which contains fonts for rendering Unicode Braille on the Linux console.
⠩⠼⠉⠲ ⠨⠜⠐⠞⠃⠝⠞⠎⠚⠂⠈⠉⠞⠟⠗⠁⠎⠾⠽⠐⠢⠕⠽⠚⠊⠓⠀⠨⠕⠂⠏⠕⠩⠝⠑⠈⠉⠕⠝⠕⠁⠏⠿⠷⠐⠢⠎⠷⠛⠋⠑⠀⠗⠎⠗⠟⠓⠈⠉⠗⠟⠏⠟⠷⠯⠐⠮⠨⠚⠊⠓ ⠐⠢⠗⠂⠟⠏⠟⠏⠑⠈⠉⠕⠩⠝⠕⠁⠏⠿⠷⠁⠮⠞⠡⠝⠾⠮ ⠸⠜⠸⠳⠄⠂⠓⠇⠛⠋⠣⠜⠭⠍⠸⠾⠕⠈⠉⠀⠸⠻⠄⠚⠊⠚⠣⠜⠐⠑⠄⠸⠮⠐⠕⠈⠉⠀⠸⠫⠄⠊⠃⠓⠊⠣⠜⠐⠑⠄⠾⠃⠩⠝⠀⠸⠱⠄⠋⠃⠑⠙⠣⠜⠭⠍⠸⠿⠇⠎ ⠨⠜⠨⠗⠡⠟⠃⠯⠐⠖⠇⠛⠇⠈⠉⠟⠕⠗⠎⠁⠞⠝⠵⠽⠚⠊⠓⠂⠀⠡⠟⠏⠵⠐⠢⠵⠃⠋⠈⠉⠏⠕⠝⠞⠃⠝⠁⠕⠯⠵⠓⠋⠂⠙ ⠞⠎⠃⠷⠊⠇⠈⠉⠎⠓⠊⠚⠙⠅⠐⠛⠓⠊⠕⠛⠋⠑⠊⠂⠓⠛⠨⠙⠀⠝⠂⠞⠮⠚⠈⠉⠞⠊⠓⠛⠃⠓⠁⠚⠑⠛⠗⠛⠇⠋⠑⠛⠃⠊⠇⠚⠙ ⠸⠜⠘⠺⠄⠅⠉⠂⠓⠊⠚⠅⠣⠜⠭⠍⠸⠵⠗⠈⠉⠀⠸⠹⠄⠊⠚⠙⠅⠣⠜⠸⠓⠄⠩⠿⠗⠈⠉⠀⠸⠱⠄⠑⠃⠙⠑⠣⠜⠸⠓⠄⠯⠟⠁⠀⠘⠳⠄⠓⠚⠑⠣⠜⠭⠍⠸⠵⠳⠧ ⠨⠜⠨⠞⠇⠎⠷⠈⠉⠗⠟⠂⠯⠈⠉⠏⠩⠕⠯⠁⠈⠉⠏⠟⠷⠈⠉⠗⠎⠾⠈⠉⠞⠗⠟⠏⠀⠎⠅⠗⠿⠈⠉⠟⠏⠵⠈⠉⠕⠩⠝⠵⠁⠈⠉⠕⠏⠿⠈⠉⠟⠗⠮⠈⠉⠎⠟⠏⠕ ⠗⠇⠉⠎⠉⠞⠉⠎⠦⠷⠦⠿⠏⠉⠟⠇⠉⠗⠉⠟⠦⠯⠦⠵⠩⠝⠇⠉⠕⠉⠏⠉⠕⠦⠽⠦⠾⠀⠐⠖⠪⠄⠈⠉⠎⠩⠝⠞⠎⠞⠝⠕⠁⠏⠿⠠⠲⠷ ⠸⠜⠸⠳⠄⠁⠉⠂⠓⠇⠛⠋⠣⠜⠭⠸⠚⠐⠏⠈⠉⠀⠸⠻⠄⠚⠊⠚⠣⠜⠐⠋⠸⠊⠐⠕⠈⠉⠀⠸⠫⠄⠛⠋⠑⠣⠜⠐⠑⠚⠗⠁⠈⠉⠀⠩⠸⠹⠄⠋⠃⠘⠊⠅⠓⠂⠣⠜⠸⠷⠮⠃⠷⠁⠿⠓⠐ ⠭⠧ ⠨⠜⠄⠦⠨⠎⠑⠉⠉⠩⠙⠃⠑⠋⠑⠙⠉⠑⠐⠎⠨⠑⠂⠐⠓⠁⠨⠑⠅⠐⠛⠃⠨⠑⠐⠋⠨⠑⠐⠟⠨⠑⠐⠊⠨⠑⠐⠛⠨⠑⠐⠑⠡⠨⠙⠂ ⠦⠞⠁⠑⠉⠉⠩⠙⠑⠋⠑⠙⠉⠑⠞⠑⠅⠐⠊⠨⠑⠐⠓⠨⠑⠐⠛⠃⠨⠑⠐⠗⠨⠑⠚⠂⠑⠐⠓⠃⠨⠑⠐⠋⠨⠑ ⠦⠩⠝⠐⠓⠉⠉⠛⠃⠓⠊⠓⠛⠉⠓⠁⠨⠏⠙⠉⠉⠚⠁⠙⠑⠙⠚⠉⠙⠦⠗⠋⠉⠉⠑⠃⠋⠁⠊⠓⠛⠉⠋⠀⠿⠅⠉⠩⠙⠙⠇⠉⠑⠵⠅⠉⠐⠓⠓⠅⠉⠛⠻⠇⠣⠜⠠⠧⠭⠩⠐⠙⠱⠣⠆ ⠸⠜⠘⠛⠸⠿⠄⠇⠠⠣⠂⠏⠛⠊⠑⠛⠇⠣⠜⠭⠸⠊⠃⠐⠱⠄⠸⠊⠃⠀⠘⠓⠸⠷⠄⠇⠠⠣⠂⠟⠓⠚⠋⠓⠂⠣⠜⠸⠓⠚⠃⠐⠫⠄⠸⠚ ⠘⠊⠸⠮⠄⠂⠠⠣⠂⠗⠪⠄⠊⠃⠣⠜⠸⠊⠩⠙⠓⠋⠃⠹⠁⠀⠸⠕⠄⠣⠜⠐⠑⠸⠋⠛⠣⠚⠪⠁⠣⠆ ⠨⠜⠄⠣⠶⠨⠟⠇⠗⠟⠏⠛⠈⠉⠟⠏⠟⠗⠁⠮⠾⠐⠢⠝⠾⠊⠓⠛⠃⠀⠗⠎⠗⠟⠓⠅⠈⠉⠗⠐⠟⠁⠗⠁⠎⠾⠽⠐⠢⠕⠽⠚⠊⠓ ⠨⠏⠇⠟⠏⠩⠕⠋⠁⠈⠉⠯⠩⠓⠇⠓⠃⠊⠮⠃⠚⠚⠂⠙⠀⠨⠏⠩⠕⠇⠩⠽⠐⠖⠇⠑⠈⠉⠑⠈⠉⠕⠕⠃⠏⠟⠏⠁⠑⠂⠙⠚⠊⠓⠃⠊⠁⠨⠛ ⠸⠜⠄⠣⠶⠐⠱⠄⠇⠽⠾⠙⠊⠣⠜⠭⠍⠐⠿⠎⠀⠸⠺⠄⠑⠸⠓⠚⠣⠜⠭⠍⠐⠵⠗⠈⠉ ⠐⠹⠄⠇⠉⠂⠚⠅⠙⠊⠣⠜⠐⠓⠄⠩⠷⠃⠊⠑⠋⠡⠓⠈⠉⠀⠸⠺⠄⠂⠉⠅⠘⠚⠇⠩⠙⠩⠑⠣⠜⠐⠓⠿⠯⠛⠭⠧ ⠨⠜⠄⠦⠐⠗⠨⠋⠇⠉⠉⠩⠑⠋⠡⠛⠋⠑⠉⠋⠁⠩⠟⠋⠓⠋⠊⠋⠚⠋⠰⠝⠂⠨⠋⠰⠑⠨⠋⠰⠙⠨⠋⠚⠋ ⠦⠰⠝⠨⠋⠉⠉⠩⠑⠃⠋⠡⠛⠋⠑⠉⠋⠁⠰⠝⠨⠋⠚⠋⠊⠋⠓⠋⠩⠟⠋⠓⠋⠊⠋⠩⠑⠃⠩⠙ ⠦⠩⠕⠊⠂⠉⠉⠓⠊⠚⠊⠓⠉⠊⠦⠐⠞⠨⠓⠂⠉⠉⠛⠓⠊⠓⠛⠉⠓⠦⠐⠎⠨⠛⠇⠉⠉⠋⠛⠓⠊⠓⠉⠛ ⠷⠉⠩⠑⠑⠇⠉⠋⠯⠅⠉⠐⠊⠊⠅⠉⠓⠐⠖⠇⠓⠂⠃⠇⠈⠉⠗⠞⠁⠝⠡⠕⠣⠜⠠⠧⠭⠩⠐⠑⠋⠁⠭ ⠸⠜⠘⠋⠸⠷⠮⠓⠛⠫⠣⠜⠭⠸⠺⠪⠩⠓⠀⠘⠊⠸⠮⠇⠡⠷⠊⠙⠃⠊⠛⠣⠜⠭⠐⠹⠋⠙⠊ ⠘⠚⠩⠑⠂⠋⠅⠓⠂⠺⠇⠣⠜⠭⠸⠛⠓⠁⠐⠫⠩⠑⠀⠸⠏⠈⠉⠋⠡⠑⠂⠣⠜⠐⠋⠸⠛⠓⠐⠙⠃⠚⠁⠭ ⠨⠜⠨⠏⠡⠟⠏⠩⠕⠋⠈⠉⠯⠐⠮⠐⠢⠞⠇⠮⠷⠐⠢⠎⠂⠷⠩⠛⠛⠁⠨⠋⠀⠕⠇⠏⠕⠩⠝⠑⠈⠉⠵⠐⠷⠐⠢⠎⠇⠷⠡⠿⠐⠢⠗⠂⠿⠋⠋⠁⠨⠑ ⠝⠞⠮⠈⠉⠎⠗⠿⠇⠈⠉⠟⠏⠵⠈⠉⠕⠏⠿⠈⠉⠟⠗⠁⠮⠈⠉⠎⠞⠁⠽⠈⠉⠀⠝⠑⠙⠚⠙⠓⠛⠋⠁⠟⠚⠊⠓⠁⠊⠰⠑⠙⠚⠝⠚⠊⠓⠛⠇⠋⠑⠙⠃ ⠸⠜⠸⠹⠭⠐⠙⠚⠩⠊⠣⠜⠭⠍⠸⠷⠐⠽⠵⠃⠋⠑⠩⠙⠀⠸⠚⠁⠘⠚⠭⠸⠚⠊⠩⠓⠣⠜⠸⠚⠄⠁⠿⠾⠡⠽⠃⠑⠙⠚ ⠸⠊⠘⠊⠧⠧⠣⠜⠸⠊⠋⠊⠙⠃⠊⠁⠛⠃⠀⠭⠘⠊⠑⠛⠊⠸⠑⠣⠜⠸⠱⠁⠧⠧ ⠨⠜⠄⠦⠐⠞⠨⠓⠂⠉⠉⠛⠓⠊⠓⠛⠉⠓⠦⠝⠛⠇⠉⠉⠋⠛⠓⠛⠋⠉⠛⠦⠕⠡⠛⠉⠉⠋⠛⠓⠛⠋⠉⠑ ⠦⠏⠂⠙⠉⠉⠚⠙⠑⠙⠚⠉⠙⠇⠕⠚⠉⠉⠊⠚⠙⠚⠊⠉⠚⠇⠦⠩⠝⠣⠚⠉⠉⠊⠚⠇⠡⠙⠚⠊⠉⠓ ⠦⠟⠨⠙⠉⠉⠡⠚⠇⠙⠑⠙⠚⠉⠙⠁⠦⠟⠙⠉⠉⠚⠃⠙⠑⠙⠚⠉⠙⠁⠦⠨⠎⠨⠙⠉⠉⠚⠙⠑⠙⠚⠉⠊⠀⠾⠅⠉⠛⠃⠛⠇⠉⠓⠷⠅⠉⠙⠙⠇⠉⠚⠺⠁⠣⠆⠣⠅ ⠸⠜⠘⠓⠂⠸⠓⠅⠊⠂⠚⠇⠭⠓⠇⠣⠜⠭⠐⠋⠣⠋⠑⠃⠓⠸⠚⠃⠀⠸⠙⠋⠅⠡⠛⠩⠛⠓⠂⠿⠇⠯⠣⠜⠐⠙⠸⠓⠊⠐⠑⠋⠸⠊⠃⠈⠉⠀⠸⠱⠄⠛⠃⠋⠑⠣⠜⠸⠊⠮⠁⠷⠪⠓⠛ ⠘⠳⠧⠳⠣⠜⠠⠧⠭⠣⠸⠋⠃⠱⠣⠜⠸⠓⠊⠁⠨⠜⠸⠚⠁⠸⠜⠸⠛⠳⠣⠆⠣⠅
Using BMC, the input above can be translated to the following LilyPond file:
% Automatically generated by BMC, the braille music compiler
\version "2.14.2"
\score {
<<
\new PianoStaff <<
\new Staff {
\clef "treble"
\key g \major
\time 3/4
b'32-2 c''32 b'32 a'32 b'8~-4 b'32 fis'32 g'32-1 a'32 b'16 c''16 \appoggiatura d'' c''16 b'16 a'16 g'16 | % 1
d''32-4 e''32 d''32 cis''32 d''8~ d''32 cis''32 d''32-1 e''32 fis''16 g''16 \appoggiatura a'' g''16 fis''16 e''16 d''16 | % 2
g''32 a''32 g''32 fis''32 g''8~ g''32 fis''32 e''32 fis''32 g''16 e''16 a'16 b''16 a''16 g''16 | % 3
\appoggiatura g''-4 fis''32 e''32 fis''32 e''32 d''8~ d''32 cis''32 d''32-1 e''32 fis''16 g''16-1 a''16 b''32 c'''32 b''16 a''16 | % 4
g''32 f''32-2 e''16 \mordent f''8~-3 f''32 d''32 g''32 a''32-1 b''32 c'''32 d'''16 c'''16 b''16 a''16 g''16-4 | % 5
f''32 e''32 d''16 \appoggiatura d''-2 e''8~ e''32 d''32 c''32 b'32-2 c''32-1 d''32 e''16 d''16 g''16 e''16-4 c''16 | % 6
b'32 a'32-2 g'16 a'8~-3 a'32 g'32 a'32 b'32 c''32-5 fis'32 g'32 a'32 d'32 fis'32 e'32 d'32 a'32-4 g'32 fis'32 c''32 | % 7
c''32-4 b'32 a'16 b'8~ b'32 a'32 g'32 fis'32-2 g'32-1 b'32 d''32 fis''32 g''32 fis''32-3 e''32 d''32 fis''32-2 a''32-3 b''32 c'''32 | % 8
b''32-3 a''32 g''16~ g''32 fis''32-4 e''16~ e''32 dis''32 e''16~-1 e''32 fis''32 g''16~ g''32 a''32 b''16~ b''32 g''32 fis''32 e''32 | % 9
a''32-5 g''32 fis''16~ fis''32 e''32 d''16~ d''32 cis''32 d''16~-1 d''32 e''32 fis''16~ fis''32 g''32 a''16~ a''32 fis''32 e''32 d''32 | % 10
g''32-3 a''32 b''32 a''32 g''16-. fis''16-. e''32 fis''32-3 g''32 fis''32 e''16-. d''16-. cis''32-3 d''32 e''32 d''32 cis''16-. b'16-. | % 11
a'4.~ a'32 cis''32 b'32 a'32 b'32 cis''32 d''32-1 e''32 fis''16 \turn g''16 | % 12
a''32-. d''32 cis''32-2 d''32 e''32 d''32 cis''32 d''32 a'32 d''32-4 g'32-1 d''32-5 fis'32-2 d''32 e'32 d''32 fis'32 d''32 a'32 d''32 fis'32 d''32 d'32 c''32-4 | % 13
b'32-.-1 d''32 cis''32 d''32 e''32 d''32 cis''32 d''32 b'32 d''32-5 a'32 d''32 g'32 d''32 fis'32-2 d''32 g'32 d''32 b'32-4 d''32 g'32-2 d''32 e'32 d''32 | % 14
cis''32-. g'32 fis'32-2 g'32 a'32 g'32 fis'32 g'32-1 e''32 cis''32 b'32-1 cis''32 d''32 cis''32 b'32 cis''32 g''32-. e''32 d''32-2 e''32-1 a''32 g''32 fis''32 e''32 | % 15
<< {fis''16-5 cis''16 cis''16-3 d''16 d''16-5 g'16 g'16-5 fis'16 fis'4-3}\\{r4 r8 cis'8 d'4 } >> \bar ":|:" % 16
fis''32-3 g''32 fis''32 e''32 fis''8~ fis''32 e''32 fis''32 g''32-1 a''16 b''16 \appoggiatura c''' b''16 a''16 g''16 fis''16-2 | % 17
g''32 a''32 g''32 fis''32 g''8~-5 g''32 fis'32-1 g'32-1 a'32 b'16 c''16 \appoggiatura d'' c''16 b'16 a'16 g'16 | % 18
e''32-3 fis''32 e''32 dis''32 e''8~-1 e''16 gis''16-3 gis''16-2 a''16 a''16-2 b''16 b''16-4 c'''16 | % 19
e''32 dis''32-3 cis''16 \mordent dis''8~ dis''8~ dis''32 dis''32-2 e''32 fis''32 e''32-1 dis''32-4 cis''32 b'32 a'32 g'32-2 a'32-1 fis''32 | % 20
g'32-. e''32-3 dis''32 e''32 f''32 e''32 dis''32 e''32-1 fis''32 e''32 g''32 e''32 a''32 e''32 b''32 e''32 c'''32-4 e''32 d'''32 e''32 c'''32 e''32 b''32 e''32 | % 21
c'''32-. e''32 dis''32-2 e''32 f''32 e''32 dis''32 e''32-1 c'''32 e''32 b''32 e''32 a''32 e''32 g''32 e''32 fis''32 e''32 g''32 e''32 a''32 e''32 dis''32-2 cis''32 | % 22
dis''32-. a''32-4 g''32 a''32 b''32 a''32 g''32 a''32 b'32-. g''32-4 fis''32 g''32 a''32 g''32 fis''32 g''32 a'32-. fis''32-3 e''32 fis''32 g''32 a''32 g''32 fis''32 | % 23
<< {g''16 dis''16 dis''16-3 e''16 e''16-5 a'16 a'16-5 g'16 \mordent g'8~-4-2-3 g'32 b'32-1 c''32 d''32}\\{r4 r8 dis'8 e'8-1 r8} >> | % 24
e''32 f''32 e''32 dis''32 e''8~ e''16 a'16 \appoggiatura b'-3 a'16 g'16 \appoggiatura a'-4 g'16 fis'16 fis'16-1 e''16 | % 25
d''32-3 e''32 d''32 cis''32 d''8~ d''16 g'16 \appoggiatura a'-3 g'16 f'16 \appoggiatura g'-4 f'16 e'16 e'16-1 d''16 | % 26
c''32 b'32 a'16~ a'32 g'32 fis'16~-3 fis'32 e'32 d'16~ d'32 e'32 fis'16~ fis'32 g'32-1 a'16~ a'32 b'32-1 c''16~ | % 27
c''32 d''32 c''32 b'32 c''32 g''32 fis''32 e''32-1 fis''32 b''32 a''32 g''32-1 a''32 d'''32 c'''32 b''32 c'''32 b''32 a''32 g''32 fis''32-3 e''32 d''32 c''32-2 | % 28
b'32-. g''32-4 fis''32 g''32 a''32 g''32 fis''32 g''32 c''32-. fis''32-3 e''32 fis''32 g''32 fis''32 e''32 fis''32 d''32-. f''32 e''32 f''32 g''32 f''32 e''32 d''32 | % 29
e''32-.-4 c''32 b'32 c''32 d''32 c''32 b'32 c''32-3 d''32 b'32 a'32 b'32 c''32 b'32 a'32 b'32-3 cis''32-. bes'32 a'32 bes'32-3 c''32 bes'32 a'32 g'32 | % 30
fis'32-. c''32 b'32-3 c''32 d''32 c''32 b'32 c''32-1 fis''32-. c''32 b'32-2 c''32 d''32 c''32 b'32 c''32-1 a''32-. c''32 b'32 c''32 d''32 c''32 b'32 a'32 | % 31
b'16-5 fis'16-2 fis'16-3 g'16 g'16-5 c'16 c'16-3 b16 b4-1 \bar ":|" % 32
}
\new Staff {
\clef "bass"
\key g \major
\time 3/4
<< {g4.-4 g8-3 fis8 e8}\\{r8 r16 b16 d'2~} >> | % 1
<< {fis4. b8 a8 b8}\\{d'8. a16 d'2~} >> | % 2
<< {e4. a8-2 g8 a8}\\{d'8. b16-2 cis'2} >> | % 3
<< {d4. e8-2 d8 c8}\\{r8 r16 fis16-3 a2} >> | % 4
<< {b,4.-"5-4" g,8 a,8 b,8-5}\\{r8 r16 d16 g2~} >> | % 5
<< {c4. a,8 b,8 c8-5}\\{g8. fis16 g2~} >> | % 6
<< {d4. d8-2 c8 d8}\\{g8. e16 fis2-1} >> | % 7
<< {g,4. g,8 b,8 d8}\\{r8 r16 d16 g4 r4} >> | % 8
<< {g4.-"1-4" g8-3 fis8 e8}\\{r8 b8 e'2~} >> | % 9
<< {fis4. b8 a8 b8}\\{e'8 a8 d'2~} >> | % 10
<< {e4. fis8 e8 d8}\\{d'8 b8 g2~-1} >> | % 11
<< {cis4. e8-2 a,8-5 g,8-4}\\{g16 a16-2 g16-1 fis16 g8 r8 r4} >> | % 12
<< {fis,8 fis16.-3 e32 fis8 a8 d8 fis8-3}\\{r8 a8-2 d'4. a8-2} >> | % 13
<< {g,8 g16.-3 fis32 g8 b8 e8 g8-4}\\{g8 b8-2 e'4. b8} >> | % 14
<< {a,8 a16.-4 g32 a4. a8-2}\\{a8 cis'8 g'8 e'8-2 cis'4-1} >> | % 15
<< {d2.}\\{d'8 e8 fis8 bes8 a4-1 } >> \bar ":|:" % 16
<< { d'4.-3 c'16 b16 c'8 a8}\\{r8 r16 fis'16 a'2} >> | % 17
<< {b4. d'8 g8 b8}\\{r8 r16 d'16 g'2~} >> | % 18
<< {c'4.-"3-4" b8-5 c'8 a8}\\{g'8. gis'16-2 a'8 d'8 e'8 g'8~} >> | % 19
<< {b4.-"4-5" b,8-3 cis8 dis8}\\{g'8 fis'16 e'16 fis'8 r8 r4} >> | % 20
<< {e,8 g16 a16 g8 fis8 e4}\\{r8 b4 a4 gis8} >> | % 21
<< {a,8 a16-3 g16 a8 c'8-2 a8 fis8}\\{r8 c'4 e'8 c'8 a8} >> | % 22
<< {b,8 dis8-4 e8-5 g8-4 b4-3}\\{r8 fis8 g8-1 e'4 dis'8} >> | % 23
<< {e2~ e8 d8-4}\\{e'8 fis8 g8 c'8-2 b8-1 r8} >> | % 24
<< {c4 r8 c'8 b8 ais8}\\{r8 r16 g16 c'16 d'16-2 e'8 d'8 cis'8} >> | % 25
<< {b8-1 b,8 r8 b8 a8 gis8}\\{b8.-1 fis16 b16 c'16-2 d'8 c'8 b8} >> | % 26
<< {a8 a,8 r4 r4}\\{a8 e8 a8 c'8-2 a8-1 fis8-2} >> | % 27
<< {r8 a,8 d,8 fis,8 a,8 d8}\\{d4-1 r4 r4} >> | % 28
<< {g,8-4 g8-5 a8-4 b8-3 r8 g8-3}\\{r8 e'8 ees'8 d'8-2 g'8 b8-2} >> | % 29
<< {c8 e8-5 f8 fis8 g8-4 fis16-3 e16}\\{c'8 g8 a8 d'8 e'8 a8~-2} >> | % 30
<< {d4. fis8-2 e8 d8}\\{a8 a16-1 g16 a4 g8 fis8} >> | % 31
<< {g,4 r4 g,4}\\{r4 r8 ees8-2 d4}\\{g8 a8-1 b8-1 fis8 g4 } >> \bar ":|" % 32
}
>>
>>
\layout { }
\midi { }
}
Which can ultimately be converted to PDF and MIDI using LilyPond. Since the PDF version is probably of low interest to the typical reader of this list, I am attaching the MIDI file so that you can actually listen to the braille music which was used as the ultimate source for this conversion:
bwv988-v13.midi
Description: BWV 988 var. 13 Standard MIDI File
If you are familiar with the inherent ambiguity of braille music code you might realize that it is actually not easy to interpret the example braille music score above: It uses note groupings. However, BMC can already fully understand music of that complexity. As far as I know, it is the first program ever that can do something like this. There is quite some work ahead still, since there is quite an extensive list of features planned for BMC. If you are familiar with braille music code and would like to see a free software project for handling/converting/listening to braille music, please consider contributing in some way. I have learnt as much as I could about braille music code in the last 5 years or so, but I am still more of a programmer then a musician. What I desperately need are people that know their share about braille music code which could help me to create more input examples which are valid braille music code but not handled by BMC yet such that I can use the example input to develop the parser and compiler further. However, if you are into programming then I am sure I can find some fun task for you as well. We ultimately plan to provide a port of BMC for all three major operating system that are relevant to blind users: Linux, Mac OS X and Windows. In any case, if you find this interesting, please make sure to contact me off-list so that we can figure out how to best cooperate in the future. If you want to take a look at the code, or compile BMC yourself so that you can already make use of its current features, you can find it on github: https://github.com/mlang/bmc/ Thanks for your time. -- CYa, ⡍⠁⠗⠊⠕
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