Quick take – Easy Virtual Choir is a free web app that runs in the chrome browser. It does not work on mobile devices, but should be OK with Mac and Windows.
Info from the publisher’s site
Home | Easy Virtual Choir
The easiest way to sing together online. Record yourself singing with friends & our software will handle the video production and editing for you!
My quick demo …
Here’s a quick video where where I demoed the basic steps in recording a duet. I had never seen the software before recording this demo. That means it’s easy to use, but I did have a few mis-steps along the way. No narration, so you have to follow the mouse clicks.
Originally posted in Clarinet Transformation Community in May, 2022. Here’s the link to my original post, with discussion (requires CT membership)