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Which name is better, more correct?

C13 is C E G Bb D F A.

If we remove the third, ninth, and eleventh, we get C G A Bb.

Would C13 no 3, 9, 11 be an correct name? I've found that same chord named as C7/6 no 3 (dominant seventh, added sixth, no third).

Which one makes more sense?

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2 Answers 2

Let's look at what we have:

 C G A Bb 

I'm assuming the C is the bass note. It would be a stretch to call this any type of C chord because not only is there no 3rd, but there is also no 2nd or 4th. There is very rarely a chord with an omitted 3rd that is not suspend.(Besides a power chord which this is not.)

If we look at this chord as some kind of A chord it makes much more sense because we can stack the chord in thirds now and have it make sense:

A C _ G Bb

We still have no 5th, but the 5th is commonly omitted in larger chords. A to C makes a minor 3rd, the G is a minor 7th and the Bb is a b9. Because the C is in the bass, we will have to notate the chord in slash notation so we get:

Am7b9/C

Still a lengthy name, but it describes the function of the chord better than C13 no 3, 9, 11 where it is very odd to omit 3 notes in a chord.

Another thing to note is it is typical in a 13th chord to omit the 9th and 11th as they are optional. So the suggested name could be reduced to C13 no 3, but still it is odd to omit a 3rd without some kind of sus.

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If we remove the third, ninth and eleventh from C13 we get C G Bb A,

so I guess the most correct term would be C13 no 3, 9, 11 or just C13 no 3(I think that a C13 chord doesn't necessarily have a 9th or 11th,but I'm not sure).

But C G A Bb would be C6/7 no 3, because the A here is the 6th, not the 13th. It would have to be one octave higher in order to be the 13th.

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