I listen to music in my shop. It isn't very distracting for me. I've done it
forever, no reason to change now. If I'm doing shop math or something I *really*
need to think about, I might work in a quiet place, but I don't think that hard
most of the time I'm in my shop. I'm almost always alone in my shop, so maybe
some of the issues other people have mentioned don't come up for me.

GWE