There was a tradition in some German churches that unison singing was more symbolic of the unity of the congregation than part singing.
When I was growing up in the Presbyterian church, everyone sang all the hymns in four parts. I miss that now.
Oh, that’s interesting. I love 4-part singing.
I sing all four parts simultaneously.
I do 'make a joyful noise' (joyful for the singer, but not necessarily joyful for the listener).
: )