Thank you edsutton for your reply. I hadn’t thought of an earworm (familiar somewhat because of Big Bang Theory when Sheldon had one). I get repetitive music, woshes, gushes, bangs, whistles and a sound like a motor running in the next room. Nothing physical that I do helped but I am getting relief from a diffuser in my office misting out a vapor with menthol aromatherapy oil. Also Lipo Flavonoid which was my first attempt at a solution. It worked to a point but not total. Now I have some days with no noise at all. Thank you for your suggestion and information. Every bit of information helps.