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Simple chord progression analysis help

Yeah, all triggered by a typo in a chord chart (wasn't just me that was confused, though, their pop-up chord symbol thingie also read it as B Diminished). Curious, but interesting discussion for an accident, thanks, folks!
Yes all very interesting. I originally saw it as a ii V I VI variation (as someone noted) but now going with the Dm tonality, i could argue the Bdim is actually Dm6. (Assuming its half dim) But again all in that 4 bar riff, not time in a bottle.
 
Rusty on the theory. I came up with a little chord progression I came up with just to practice some position transitions for a song I'm working on on guitar (Jim Croce's "Time In A Bottle") and I realized I don't quite know what's going on with it. So it's simple enough, just 4 chords:

Dm7 Bdim Cmaj7 A7

Now the first three chords to me imply C major as the key, but then the A7 to Dm7 implies D minor. Is it just waffling between the two keys or is there something more going on? The transition from the Cmaj7 to the A7 doesn't sound all that jarring or "out of key" so I'm guessing I'm missing part of what's going on harmonically.
D minor.

This a typical minor key progression where the bass goes down over a minor triad( Dmin in this case). The bottom note of the triad goes down as well.
 
D minor.

This a typical minor key progression where the bass goes down over a minor triad( Dmin in this case). The bottom note of the triad goes down as well.
Yeah, I can see that, if it had been written "Dm / B" I wouldn't have thought twice. (To clarify, this is referring to my little 4 chord progression, but also to the (non-)instance in the bad / misinterpreted chord chart for the song.)
 
I knew there was a name for it! This of course only applies to the OPs original example, looks like other things happening in 'time in a bottle,' apparent from some of the other posts in this thread

Understanding the error about the Bdim that wasn't, you'd still call this chord an applied dominant since you are "borrowing" a V7 from another key to drive you to a particular chord. This kind of thing is used pretty frequently.
 
I think you like the tritone between the bass note B and the F natural. This interval exists (of course among other things) whether you play a B diminished or Dminor/B.
Why, yes, I am a King Crimson fan, now that you mention it! :woot::smug: (Their "Red" era 70s incarnation had a particular fixation on the tritone.) But yeah, it's the driving tension it gives to the flow that I like.
 
Why, yes, I am a King Crimson fan, now that you mention it! :woot::smug: (Their "Red" era 70s incarnation had a particular fixation on the tritone.) But yeah, it's the driving tension it gives to the flow that I like.

A lot of people do, myself included! It's also in every blues ever (a lot) and plenty of rock and roll... And well anywhere a dom7 chord exists. So pretty much everything lol.
 
Yeah, I can see that, if it had been written "Dm / B" I wouldn't have thought twice. (To clarify, this is referring to my little 4 chord progression, but also to the (non-)instance in the bad / misinterpreted chord chart for the song.)
There is nothing wrong with your Bdim. It is actually a Dmin6\B OR a Bmin7(b5) OR a G9/B. They all are pretty much the same thing.

Also it is important to know that up to 3 scales can be involved over the I chord in a minor tonality: Minor natural or Aeolian, Minor melodic and Minor harmonic. This is exactly what is happening in that chord progression. The D minor will be D minor natural, the DminMaj7\C# will be either the harmonic or melodic, the Dmin7/C will be minor natural, the Dmin/B will be the minor melodic...
 
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I agree to just call it Dm with a descending bass line. That's the simplest way.

As to the Bdim dilemma, when the bass hits B the melody has just hit A right before it on "bottle." If you wanted to call it some kind of B chord it would be Bm7b5 (half diminished). A full diminished B chord (Bdim7) there would conflict with the melody because of it's Ab.

Interestingly, I noticed that the melody up to that point is Phrygian due to hitting a Bb on "in."

Goodness, this is fun, but never thought I'd ever analyze (or overanalyze) this song so much.

My Funny Valentine has the same kind of progression except the Real Book version doesn't have the bass dropping down. Instead it's:

Cm-Cm(maj.7)-Cm7-Cm6
 
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My Funny Valentine has the same kind of progression except the Real Book version doesn't have the bass dropping down. Instead it's:

Cm-Cm(maj.7)-Cm7-Cm6
Oooh, that's another one I've been wanting to work on (particularly the Elvis Costello version).
 
Yeah, many songs do it, some in minor keys, some in major. Sometimes the chords actually change, sometimes not.

When a Man Loves a Woman
Forever Young
The Weight
Dark End of the Street
Whiter Shade of Pale

Those are all in major keys.
Remarkable, another two of my "favorites I intend to learn" on that list. Also Cream's "Tales Of Brave Ulysses" in A minor. I think The Residents' bizarre "Constantinople" has a major key version.
 
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