McGill professors Julie Cumming and Peter Schubert have recently released a series of new videos on Renaissance vocal improvisation. Schubert:
Dear friends and colleagues, Julie Cumming and I are pleased to announce the release of five new videos on Renaissance improvisation: https://mcgill.ca/music/article/blog-faculty-research/singing-book-new-video-series-launched Enjoy!
The above link includes an interview and presentation of their pedagogical videos.
Here is the introductory video:
And here is a direct link to the youtube playlist. Be sure to watch these videos!