Great answer.
In my church assembly - we might sing "Bringing in the Sheaves", "Victory in Jesus", "Days of Elijah" [as in the above video], or any song that sung congregationally can bring honor to God.
We have a someone who plays the piano [me], a drummer, bass guitar, lead guitar, and keyboardist.
Not everyone plays their instrument in all 10 songs [counting Sunday morning and Sunday night]. It depends on the song, the particular verse, or how the instruments best sound in laying out the format for singing. Sometimes we repeat a chorus or do a last verse acapella.
Singing and music at my church is all about reverencing God and exalting him. It maybe loud or soft, with full instruments or with none.
I completely understand how everyone has their own opinion of how music should be expressed in church. I've been in the music ministry since I was 16 and I'll be 58 soon. I've seen a lot come and go and the one thing that never ever changes is that people are not happy with either their own church music or the music of the church down the street. And they can't wait to criticize it.