system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does singing sound good when you put together a group of bad singers? e.g. a fifth grade choir.
gpt
It's all about "blend".  A good choir teacher will encourage their group to blend well so that there are no individuals that are way louder than others, and any of the "not as good" singers might be asked to sing a little softer to help with the blend.