You can view this and other resources using free/libre software at https://emacsconf.org/2021/talks/gregorian . This video is available under the terms of the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license. There are a variety of methods for typesetting gregorian chant scores and outputting high-quality sheet music. One of these is a tool called Gregorio, which integrates with LaTeX allowing scores to be cleanly inserted into other documents. All Gregorio files are plain text, allowing them to easily be shared with other users and managed with a version control system. In this talk, I will give a brief overview of the Gregorio tool and then show how it can be used in Emacs by typesetting a simple score. All code and examples will be made available to help new users get started with typesetting their own scores. 00:00 Introduction 00:10 Roadmap 00:46 Gregorio 01:46 Metadata 02:08 gregorian-mode 02:48 Examples 06:49 Useful links