My CFG Loader has never had music... How do we add a song?
Assuming it's set to the default location - On your SD card or USB Drive, wherever you have Conf USB Loader installed, there will be a sub-directory called "usb-loader".
Once in there you should see a "music" sub-directory. Put your .mp3 music in there. I have 21 songs in my directory and it'll randomly choose one with each load and then move on randomly to another song once finished.
i.e.----> SD/usb-loader/music/"Song(s)".mp3