If the Library of Babel contains everything that has and will ever be written. Then it could contains songs that were ment to be written by Freddie Mercury or Kurt Cobain.

For those uninformed of what The Library of Babel is.

TLDR: a website that has everything ever written and ever will be written.

Example: if you've written an original song. Search for it in the library, you will find that exact song in the exact order you wrote it.