Singing and coaching lessons can work very well on Zoom.
Zoom is easy to download for free and simple to use.
The sound and visual quality are very good and it is clearly a very useful alternative to traditional lessons in person in the music room.
It provides added opportunities to record the lessons and go through moments in great detail and some students are finding the whole on-line lesson extremely useful.
This on-line medium allows real analysis and development of vocal technique and consolidation of repertoire.