美 The Music Encoding Initiative schema and guidelines development repository

🎵 Music notation engraving library for MEI with MusicXML and Humdrum support and various toolkits (JavaScript, Python)

Edirom Online is a tool for presenting historical-critical music editions in digital form.

📜 The Music Encoding Initiative Guidelines

MEI Lilypond Engraving Refinement

Edirom Editor (a web technology based client application wrapped into an Eclipse RCP container) is an editor with which digital music editions are prepared.

A Java-based software that brings paperbased historic-critical editions of musicians handwritings to the pc.