If you get the unpacked nexus version you can replace the file ComputerGeneratedByMacLeod.ogg file for anything you want. (Sorry for delayed response.)

Is it possible to make a version that plays the 'Dominion of Providence' song from Split DLC? Better yet would be an easy way to let user drop whatever song they want to replace the combat music. I can copy my favorite songs and rename them to 'defaultcombatsong.ogg' :))))