Has anyone done mods to their headphones going for better sound or whatever you guys like? For example: Cutting the back of the Audiotechnica ATH-M50x headphone cups out for DIY open back headphones I'm curious who has done something like this and what the results were

People are asking questions for different types of music but I haven't seen a post about what everyones favorite song is. What is you favorite song? This is obviously a tough thing to ask with litterally MILLIONS of songs out there, if not billions. I'll start Warmness On The Soul by Avenged...