Who brought polyphonic music into the christian church?

In an article about americans working in middle eastern countries, cicy, a white journalist, is described as knowing that she should cover her hair when she leaves her house. according to this article, cicy:

The "neo-impressionists." as they were called at the time, believed that is the proper subject for their painting

What is that song about that has the word render of reender in it i think its from a musical ^60 points