Hi! Sorry, I guess I was unclear. I got it working correctly after adding Cherub Rock to my library. That was the problem. And apparently you're right, I just loaded a song without altering it at all and it worked fine. That's surprising to me since the official Rocksmith song file permissions are: -rwxr-xr-x And these custom songs are: -rw-r--r--@ Oh well, I guess it's just reading the files into memory and doesn't need execute permissions. I wonder why the official ones are created with execute permissions? ¯\_(ツ)_/¯ Thanks for the response.