An app that helps you write song ideas. If you like singing as a hobby, or even writing, Im sure you've wanted to do this before but there are not many apps for this, and that's a problem. AI could help us generate song lyrics from a simple scentence. Now, truthfully, there is a problem because there is a lot of mixed feelings of AI art, AI songs, AI, anything. Which people may be annoyed about, but if the  AI use is minimal and the people have to put in at least half the effort or more which could be amazing. That would really boost that app, especially people who have a creativity block, or are just looking to make something up quick, but want to put in efforet.