Here is a podcast featuring Prof. Michael Cuthbert, principal investigator of the Music21 project.
What is music21?
Music21 is a set of tools that help scholars and other active listeners answer questions about music quickly and simply. Combining knowledge from musicology and computer programming, Cuthbert’s music21 project equips computers with a basic understanding of music theory—making it possible to analyze more music than ever before. Visit the Music21 website.