As much as I love to have music at home, I don't bring any for the trail. I prefer the sounds of the wild--even if it's just the wind blowing, or even just silence.

I also can usually conjure up plenty of music in my head, if I want it (and sometimes if I don't). I just recently had the entire third movement of Castelnuovo-Tedesco's Guitar Concerto flash through my head, when I learned that my son and daughter in law are going to Spain for their 20th wedding anniversary (and guess who is going spend most of September staying with the grandchildren?).

Your mileage probably will vary, and that's fine with me as long as you use your headphones--and not so loud that I can hear them as you pass by (which would damage your ears as well as my enjoyment).