I worked in a loud music environment for a few years and that's what my doctor rooted my tinnitus back to. I had often been told that loud music could affect your hearing, so I'm not surprised that this has happened- with that being said I know MANY people who listen to their headphones on a very loud setting for very long periods of time and never once experience tinnitus. Is it more common to happen to people who are in a loud-speaker environment than people who listen to headphones? It seems like I've just never met anyone who had this happen due to headphones.