We recently established a successful Useful Concepts Repository. It got me thinking about all the useless or actively harmful concepts I had carried around for in some cases most of my life before seeing them for what they were. Then it occurred to me that I probably still have some poisonous concepts lurking in my mind, and I thought creating this thread might be one way to discover what they are.
I'll start us off with one simple example: The Bohr model of the atom as it is taught in school is a dangerous thing to keep in your head for too long. I graduated from high school believing that it was basically a correct physical representation of atoms. (And I went to a *good* high school.) Some may say that the Bohr model serves a useful role as a lie-to-children to bridge understanding to the true physics, but if so, why do so many adults still think atoms look like concentric circular orbits of electrons around a nucleus?
There's one hallmark of truly bad concepts: they actively work against correct induction. Thinking in terms of the Bohr model actively prevents you from understanding molecular bonding and, really, everything about how an atom can serve as a functional piece of a real thing like a protein or a diamond.
Bad concepts don't have to be scientific. Religion is held to be a pretty harmful concept around here. There are certain political theories which might qualify, except I expect that one man's harmful political concept is another man's core value system, so as usual we should probably stay away from politics. But I welcome input as fuzzy as common folk advice you receive that turned out to be really costly.
Yes, I'm taking about BWV 565. I was too lazy to look up the number, and I should have said "Tocatta and Fugue in Dm". He only wrote two things called "Tocatta and Fugue in Dm", and this is the more famous one.
And, YES, the chord does fit my description. I don't have to look it up; I play it, and I know you begin by striking a very low D, then the C# almost an octave above it, then the E just above that, and more notes beyond as well.
AND I just went downstairs and checked the score, just in case you were actually right. I think you may be talking about the next chord. What I'm calling the "chord" is written as an ascending series of notes, but most players hold them all down until the last one. It's the weird one, not the "pivot" & not the resolution.
At least one of us is very confused. I don't think it's me.
At the end of the toccata there is a chord containing the following notes, from bottom to top: D (in the bass, on the pedals), another D (lowest note on the manuals), F, A, D. This is a perfectly ordinary chord of D minor, of course. After that there is a semiquaver rest and then the fugue subject begins (or, perhaps better, the fugue subject begins with a semiquaver rest). At that point, as is normal in a fugue, there is only one voice sounding.
Oh, wait, you weren't talking about the fugue at all?... (read more)