Music Encoding Initiative

The Music Encoding Initiative (MEI) is a community-driven effort to define a system for encoding musical documents in a machine-readable structure. MEI brings together specialists from various music research communities, including technologists, librarians, historians, and theorists in a common effort to define best practices for representing a broad range of musical documents and structures. The results of these discussions are formalized in the MEI schema, a core set of rules for recording physical and intellectual characteristics of music notation documents expressed as an eXtensible Markup Language (XML) schema. It is complemented by the MEI Guidelines, which provide detailed explanations of the components of the MEI model and best practices suggestions.

MEI is hosted by the Akademie der Wissenschaften und der Literatur, Mainz.

If you want to become an active MEI member, you are invited to read more about the community and then join us on the MEI-L mailing list.

MEI is sponsored by the following Institutional Members:


Registration open for MEC 2019

Posted Mar 1, 2019

The registration to the Music Encoding Conference 2019, 29 May to 1 June 2019 at the University of Vienna is now open!

Extended deadline for CfP MEC 2019

Posted Dec 6, 2018

The Music Encoding Conference 2019 calls for paper, poster, panel, and workshop proposals to be submitted by the extended deadline of 16 December 2018.

MEI 4.0 Schema Released

Posted Nov 1, 2018

The Board of the Music Encoding Initiative (MEI) is pleased to announce the availability of the MEI 4.0 Schema. The MEI is an international collaborative effort to capture the semantics of music notation documents as machine-readable data. For more information about MEI, please visit