Public Domain Music

So we finally found a creepy song to use in our film and it's called After You've Gone by Eydie Gorme. This song is super old so it's in public domain, which means that anyone can use it. The song is from 1920 and I found it from a website that lists public domain songs. Here's the link to the website https://www.pdinfo.com/pd-music-genres/pd-popular-songs.php

We put it over the montage scene in our film and it looks really good and it gives our film a really creepy and eerie feeling.