You can hear hymns in public places, but they are public places after all. If the volume is not appropriate, it can easily become the noise of others in public places. Therefore, in public places, we should first consider the feelings of others, don't disturb others, and pay attention to the volume. The best way is to wear headphones.
Playing music and talking loudly outside public places is very uncivilized and will affect others. Therefore, we should pay attention not to disturb others in public places.