Al,
Placebo effect is very strong when mistakes happen. Many years ago friend of mine invited girl home and offered to play some Bach organ music from his father LP collection. After a while it started to sound very strange so he glanced at rotating LP but it said BACH - no mistake. At the end it was really, really weird but he kept playing since he bragged before how he loves Bach music. When she left he examined the record again. It said Phantasie and Fuge on BACH, Max Reger. I was laughing hard since I heard Max Reger piece played once in a church and it was simply SCARY.