A last question

Refering to

<< 0-7-12-17-24: Dominant Ninth "9" diff. 2.980, 1.955, 2.159, 3.910
G Bv D F< A >>

How do you name or differentiate the following chords?

chord A chord B

1 5 3 7 9 1 5 3 7 3/11

T72 0-23-42-58-84 0-23-42-58-81
Canasta 0-10-18-25-36 0-10-18-25-35
Blackjack 0- 7-12-17-24

Pierre

--- In tuning@y..., "Pierre Lamothe" <plamothe@a...> wrote:
> Refering to
>
> << 0-7-12-17-24: Dominant Ninth "9" diff. 2.980, 1.955, 2.159,
3.910
> G Bv D F< A >>
>
> How do you name or differentiate the following chords?
>
> chord A chord B
>
> 1 5 3 7 9 1 5 3 7 3/11
>
> T72 0-23-42-58-84 0-23-42-58-81
> Canasta 0-10-18-25-36 0-10-18-25-35
> Blackjack 0- 7-12-17-24

Hi Pierre,

A good question. It seems I have a disagreement with Manuel here. Lets
consider the 7th chords first.

Manuel refers to the 4:5:6:7 chord as a "harmonic dominant 7th". I
call it a "major subminor-7th" or a "harmonic 7th".

I also consider that a "dominant 7th" chord is a "major minor-7th"
chord. i.e. the dominant 7th chord has a minor 7th (5:9 or 9:16),
where the harmonic 7th chord has a subminor 7th (4:7). Approx
4:5:6|5:6.

I would not mix the terms "harmonic" and "dominant" in the name of a
single chord.

Now a "dominant 9th" chord is a dominant 7th chord with the addition
of a major 9th from the root, and so it could also be called a "major
minor-7th major-9th chord". Approx 4:5:6|5:6|4:5 = 4:5:6|1/(6:5:4)

So neither of the two chords above is a dominant 9th.

Chord A I would call either "major subminor-7th major-9th", or simply
"harmonic 9th". Msm7M9 or h9

Chord B I would call either "major subminor-7th neutral-9th" or
"harmonic-7th neutral-9th". Msm7N9 or h7N9

For my proposed 72-tET/11-limit interval names see
http://dkeenan.com/Music/Miracle/MiracleIntervalNaming.txt

Regards,
-- Dave Keenan