I hate to be a "Tuning" nazi, I just watched the Hey Joe Riff, now either the tuning, intonation or the strings on the Strat being used are not right. I retune any guitar I am using after every couple of songs, because I have hot hands and the warmth from my hands affects individual strings and flattens them, when I put the Guitar down and the environment is cold the strings will sharpen a little as they cool down. The Hey Joe vid was for me a turn off. :)