One of my former students, Kyle Scripnick, just sent me this live link of renowned American Baritone, Thomas Hampson conducting a Vocal Masterclass at the Manhattan School Of Music.
Although the singers are of the classical genre, the information coming in now is invaluable.
Thaks Kyle and, of course, the esteemed Thomas Hampson. You can visit his website here.
Important updated information from Thomas Hampson:
I tuned into this important webcast toward the end of the Masterclass seminar. Hopefully, it will be available for download very soon.