Right now, every sound that is repetitive. Some, more than others. Can’t even listen to Mozart anymore for longer than half an hour, especially if I catch a repetitive note, which is bound to happen, even with a genious like him. Getting worse as I get older. Best not to isolate myself but be exposed to trigger sounds on and off as I have found long term isolation from trigger sounds has made things worse for me. So, a bit like using homeopathy, but with no chance of cure, only stabilizing the ailment.