Well tuned piano:
http://www.youtube.com/watch?v=Fn2CJmFrUmU
The Second Dream of the High-Tension Line Stepdown Transformer:
http://www.youtube.com/watch?v=yfZzz58VUaw
http://www.youtube.com/watch?v=eXRT8UjmJKo
119 Bank St., La Monte Young Apt., 1 of 3:
http://www.youtube.com/watch?v=4IfzftLO87E
http://en.wikipedia.org/wiki/La_Monte_Young
