Almost all of the instructors that I've spoken with about ChatGPT are worried about the ability of students to fabricate essays. I've tried to explain that if they just teach students how to use it to bootstrap and then iterate on their own writing it is immensely powerful. If your students are fabricating their essays even with that assistance available maybe that says something about your curriculum...
Being able to feed a partially complete set of lyrics in along with a bracketed description of generally what I want the missing parts of the song to convey and the audio vibe that would be present is incredible. I like noodling and pondering the English language as much as the next nostrich, but sometimes you just need that paragraph or verse to be done so that you can move on to something else.