artexanis's Stars
w3c/smufl
Standard Music Font Layout
w3c/musicxml
MusicXML specification
craigsapp/scorelib
SCORE data file processing library in C++
neoScores/musicjson
Parses and translates MusicXML to MusicJSON and back again
saebekassebil/musicjson
Parses and translates MusicXML to MusicJSON and back again