0

I figured it out by ear in several songs, looks like a dim chord but with a slightly higher last note but cannot put a name on it.

I'm calling it "dim+" for my personal notes, but I'd like to know the official name.

4

This is a C half diminished 7 chord:

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The scale that typically pairs with this half diminished chord is the locrian scale. For example, C half diminished 7 (usually notated C min 7 ♭5 or Cø7) would be played with the C locrian scale:

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The locrian mode is the seventh mode of the major scale, and thus C locrian has all the same notes as the D♭ major scale, as can be seen above. There are other scales that work with half diminished chord, but the locrian scale is a good start. C half diminished can resolve to D♭ maj, or it can be part of a "minor ii-V-i progression," such as Cø7 - F7♯9 - B♭ minor. There are other functions for this chord, but these are two big ones.

3

That would likely be D♯m6, third inversion, with the notes as you've written them.

Or, if the tonic here is definitely C, it would be C1/2dim7, but the notes would be C E♭ G♭ B♭. Also known as the Tristan chord.

  • He's not spelling it any way really, is he. Just fret-counting. Though it's interesting to note that a half-dim7 (often written as m7b5) has the same pitches as a m6 chord. (That's a minor triad plus a major 6th, not a major triad plus a minor 6th. Don't argue, that's just the slightly illogical way it's named.) – Laurence Payne Jul 2 '17 at 22:23
2

It's a C half diminished 7th chord. I often spell it as C-E♭-G♭-B♭, but your spelling at least gets the notes right.

0

In jazz chord/scale theory, this chord is a C half-diminished chord, and is the sixth mode of E♭ jazz minor (melodic minor ascending and descending), the scale itself being called the half-diminished scale.

-3

It is C #6sus#2#4no5

I identify chords with my brain

  • Do you think this is a better answer than "C half-diminished seventh"? – Richard Nov 22 '18 at 18:39
  • Yes, I know how to identify chords with my brain – Alex G-I Nov 22 '18 at 18:45
  • I'm fascinated. Exactly how do you do this? – Tim Nov 22 '18 at 19:04
  • I think about what is the chord – Alex G-I Nov 22 '18 at 19:09
  • 1
    since the time I asked the question, I have taken jazz lessons and it's definitely half-diminished, not C#6 whatever. – Jean-François Fabre Nov 22 '18 at 19:56

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