Hey, great job on answering so quickly. I was unclear, I meant within in the software, when filtering around the Mordor regions all songs that I didn't assign anywhere else but Dagorlad, Barrow Downs and Dead Marshes showed up in Nurn, Nnun Ungol, East etc but only when I assigned the songs for BarrowDowns-BarrowDowns did it dissapear from the other Mordor regions.
I hope it was comrehensable, my english isn't the greatest. And thanks a lot and great job. This software is godlike.
Edit: I found the Grey Mountains Foothills sub biome missing.