There are two parts for this task. The first is for MediaWiki-extensions-Score to be able to engrave scores provided through file uploads, and then secondly to allow these files to be uploaded to the Commons.
|Open||None||T198233 Allow musical notation to be expressed in Wikidata, with rendering and maybe playback|
|Open||None||T44725 Multimedia file format support (tracking)|
|Open||None||T208494 Allow music scores to be uploaded to Wikimedia Commons|
|Open||None||T201637 Support engraving of musical files on Wikimedia Commons|
|Stalled||Feature||None||T183641 Render musical notation as MusicXML|
|Open||None||T183642 Support MusicXML to Lilypond Conversion|