Last night I was playing RB3 and decided to take some Pearl Jam songs for a spin on harmonies. I was surprised to find that Just Breathe used the older type of highway (Newer ones from the start of 2010 DLC use a higher and lower register type set up that people find easier to sing). I was curious if anyone else had known about this and I started wondering how it was that HMX got these harmonies in the game. Were there updated and remixed Pearl Jam harmony files in the RB3 disc? or were they overlooked in the original files?
If HMX just attached these vocal parts onto the original DLC at some later time why can't they do the same with rereleased DLC?