Thanks redwing!
The screenshot below (left) shows the lyrics as they appear currently, and (right) after I run "\r\n" to replace all newline characters with "[NL]"

Any tips on what to do next?
The screenshot below (left) highlights the newline characters I want the syntax to remove, and (right) the end goal!

Most of the songs in my library have lyrics like this by default, so I'd be aiming to do it in bulk. But what would happen if I ran the syntax on files that had lyrics stored correctly? Would they then mess up, or would they not be affected by it because they don't have the additional line breaks to start with?