New Years Eve - Dancing Queen

For the New Year's gig I'm playing, I have to learn the song "Dancing Queen" by ABBA. I was doing just that when I discovered a sour bass note at 3:09. It was definitely a mistake (a very avoidable one) but it was kept in. I never noticed it until yesterday because though I've heard the song plenty of times over the years, yesterday was the first time I ever really listened to it.

But it got me thinking. The song was released in the summer of 1976, and that sour bass note has snuck it's way into countless clubs, parties, weddings, and millions of plays on the radio. If it was recorded today, some producer or engineer would have copied the previous chorus and replaced the mistake.

For a song that it still played as often as it is, that sour bass note is a treasure.