Listen to the first second of "Guardian Angel". The high pitch sound kicks in at .5 seconds. You really have to listen for it.
Listen starting from 29 seconds on "Robot No. 28". It sounds exactly like that ear ringing sound I would hear if I came out of a concert where the music was playing too loud. The track bothered me two years ago, and still to this day. At first I thought I was just imagining the sound in my mind, but yea, that wasn't the case.
Me & Tinnitus? Not yet.
As for my not being able to handle high pitch sounds, I can listen (and enjoy) this just fine:
http://www.dailymotion.com/video/xbn...ventolin_music