GitHub Musical Score Extension is a Chrome add-on developed by uttne. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension allows users to display MusicXML files as images on GitHub.

If you use MuseScore or other music notation software to create sheet music and want to manage it on GitHub, this extension is highly recommended. It solves the inconvenience of XML representation by converting MusicXML files into images for easy viewing. With this extension, you can easily share and collaborate on musical scores with other GitHub users.

The GitHub Musical Score Extension is free to use and is compatible with the Chrome browser. It provides a seamless experience for musicians and composers who utilize GitHub for version control and collaboration on their musical projects.