Score. GNU Solfege - free ear training software. Open source music notation editor. MusicXML. MusicXML is an XML-based file format for representing Western musical notation.
The format is proprietary, but fully and openly documented, and can be freely used under a Public License.[4] History[edit] MusicXML was developed by Recordare LLC, deriving several key concepts from existing academic formats (such as Walter Hewlett's MuseData and David Huron's Humdrum). It is designed for the interchange of scores, particularly between different scorewriters. LilyPondTool website: Home.