Its weird that this song was lost and the only thing we had was the sound that appears in some videos (its weird that nobody notice that this was lost until one day)
I looked up PTSD like the doctor said that Logan had, but I looked at the symptoms, and I can see the memories and such, but hallucinations and numbness aren't one of then, whoever those 2 memories are they aren't his... I also notice the white one invokes positive ideas saying he should turn it on, while the black one is negative ideas saying he shouldn't do that whatsoever. So they may be separate entities in his mind just pulling his PTSD strings.