I used to attend a church (Episcopal) where the original pastor had the bright idea of not having a choir. Congregational hymn singing and full participation would be the order of the day. Only they weren't. By the time we joined that parish, the church had wound up having to make some major physical alterations to squeeze in the choir they thought they didn't need.
Repetition of music is different from repetition of words. Why do you think the Liber Usualis has different chant settings for every day of the liturgical year? And that goes back as far as chant goes back, so it's no modern or pop innovation.
>>Why do you think the Liber Usualis has different chant settings for every day of the liturgical year? <<
And why do you think we only use the common chants at Holy Mass? Just because they are written doesn’t mean they are used, eventhough they are allowed.
Our chants don’t change for our Latin Vernacular nor our Traditional Latin Mass.
They don’t change in our vernacular Holy Mass both English and Slovak.
Perhaps choir directors like liturgical committees perpetuate their jobs by innovations.
>>I used to attend a church (Episcopal) where the original pastor had the bright idea of not having a choir.<<
In our Catholic Church we have two Holy Masses on Saturday and six on Sunday. We have a chant choir at the TLM and another group of adults at the 7:30 Sunday morning. The Slovak Mass has a Cantor.
With an organ, NOT a piano, one doesn’t need a choir at all. Our Holy Mass at 6:30pm never has a choir. We sing.