If you ever have the chance to see Dom perform, then I encourage you to go see him live.
More music, the Psautiers database
This is a website with some free music scores, you can find XVIth century psalms as well as other type of music. It was created for researcher in Musicology in LaSorbonne Université to analyze, study classical music scores and understand old French linguistic through the lyrics of a score. These computer programming tools are now part of a project funded by the French laboratory Iremus. These programs were used in a few Ph.D thesis (see the following presentation in French). For more information, I refer to the page of Alice Tacaille, who is the researcher with whom I previously worked on this project.