We just completed a ten day trek in the Nepal Himalayas (more on that later) with nothing but our own wheezing breaths for accompaniment. There's very little electricity available, so no iPhone charging and mostly you actually do need to be aware of your surroundings, particularly our guide calling, "No! Other right!"
So these were the tracks in my internal jukebox. You'll notice twin themes of cold and lack of oxygen. Not an accident, that.