I don't ever hear any kind of music, just various machinery, sometimes like standing in a machine shop. Some of the sounds are identifiable, like the sound of the lawnmower or dishwasher, while others are just noise that I can't ID or remember hearing at some specific time in the past.
As well as mishearing some words (and forming amazing conclusions what from you think you heard!), there's the problem of concentrating so hard to understand the words that you immediately forget things like names, dates, etc. I think it's because my brain is so busy working to decode what I hear that it has no ability to store info. At any rate, it's embarrassing to meet someone you met a week earlier and have no memory of their name. If I hear facts during a phone call in my office, I am good about scribbling the name (or whatever), but I often meet people while I'm out working on the big flower bed I maintain along our road, with no way to make notes.
Another thing I've learned is that I'm much more comfortable watching a series, where I "know" the characters and can sort of expect what they'll say or do. Movies, however, are far more difficult, all new territory, so I avoid them. I wonder if others do the same...