Because people have mentioned it quite a few times to me I want to bring this up! I don’t think people give Taehyung and Jungkook enough credit with their accuracy on pitch. The risk with harmonizing is how easily it can throw you off your pitch +
one doing the harmonies usually does the difficult task to “isolate” themselves from the melody. But I really commend their unit for because they can switch between who’s doing the melody and who’s doing the harmony. This doesn’t magically happen+ https://twitter.com/vksubunit/status/1253036563107401728/video/1
It takes a lot of practice and training. You need to communicate and be on the same page with the one you’re singing with. It’s the only way the “blends” will sound really outstanding