Yahoo Tuning Groups Ultimate Backup tuning Sagittal chord chart

I've written up a Sagittal chord chart and uploaded it here:

http://andrewmeronek.com/music-tools/sagittal-chord-chart/

Please feel free to use it for a reference, and please let me know if you find any errors. Also, please let me know if you really, really need me to add another chord set.

🔗gedankenwelt94 <gedankenwelt94@...>

Hi,

--- In tuning@yahoogroups.com, "bigAndrewM" <bigandrewm@...> wrote:
>
> please let me know if you find any errors.

I noticed the chord list contains both "1:1, 5:4, 3:2, 5:3" (C6 etc.) and "1:1, 6:5, 3:2, 9:5" (Am7 etc.), which are basically the same; I suppose the redundancy is unintentional(?).

> Also, please let me know if you really, really need me to add another chord set.

Here are some 7-limit chords which I think are interesting / useful:

1:1, 7:6, 3:2
1:1, 7:6, 3:2, 7:4
1:1, 5:4, 3:2, 7:4, 7:3
1:1, 21:16, 3:2, 7:4
1:1, 8:7, 3:2
1:1, 5:4, 7:5, 5:3

I guess it's best if you decide on your own which of them to add (if any). ;)

-Gedankenwelt

🔗bigAndrewM <bigandrewm@...>

Ah, thanks for the critical eye. I listed some "equivalent" chords, but I missed C6/Am7. Which is probably one of the easiest ones to describe.

At some point, I will add 17, 19, and 21-limit chords. 1:1 7:6 3:2 is really 5-7-9 of the dominant 9th chords already; maybe I'll add it separately, too, but I'm not sure if it's worth it to go down that road of pulling out every possible triad of the more complex chords.

I also plan on adding some Sagittally-enharmonic spellings of chords, too.

And adding more of what I think of as "synthetic" chords which are not entirely either otonal or utonal but a combination of the two (like your suggested 1:1 8:7 3:2) is definitely good.

Andrew

--- In tuning@yahoogroups.com, "gedankenwelt94" <gedankenwelt94@...> wrote:
>
> Hi,
>
> --- In tuning@yahoogroups.com, "bigAndrewM" <bigandrewm@> wrote:
> >
> > please let me know if you find any errors.
>
> I noticed the chord list contains both "1:1, 5:4, 3:2, 5:3" (C6 etc.) and "1:1, 6:5, 3:2, 9:5" (Am7 etc.), which are basically the same; I suppose the redundancy is unintentional(?).
>
>
> > Also, please let me know if you really, really need me to add another chord set.
>
> Here are some 7-limit chords which I think are interesting / useful:
>
> 1:1, 7:6, 3:2
> 1:1, 7:6, 3:2, 7:4
> 1:1, 5:4, 3:2, 7:4, 7:3
> 1:1, 21:16, 3:2, 7:4
> 1:1, 8:7, 3:2
> 1:1, 5:4, 7:5, 5:3
>
> I guess it's best if you decide on your own which of them to add (if any). ;)
>
> -Gedankenwelt
>

🔗bigAndrewM <bigandrewm@...>

🔗d.keenan@...

Hi Andrew,

Thank you so much for these chord charts. They are a great resource. I will be
linking to them from the Sagittal home page.

But there's a problem with your mixed-sagittal notation of some chords. When
there is both a sagittal and a conventional against the same note, they should
not be separated by a large gap or by any part of an accidental on a different
note. The intention is that the combination of accidentals against one note
should almost appear to be a single composite accidental. The first place this
occurs is with your Ab major triad. You have interleaved them as /|/|bb when
they should be /|b/|b. You can see the correct treatment in the fourth chord
here. http://www.sagittal.org/exmp/index.htm

There is an additional error in the mixed notation of several Ab chords. The
lower 5-comma-up symbol is displaced upward by one position.

Please let me know when you've corrected these so I can put up the link.

Regards,
-- Dave Keenan

--- In tuning@yahoogroups.com, <tuning@yahoogroups.com> wrote:

I've added the Mixed Sagittal chart, found and corrected a few errors, and
eliminated the redundant chord set mentioned previously in this thread.

http://andrewmeronek.com/music-tools/sagittal-chord-chart/
[http://andrewmeronek.com/music-tools/sagittal-chord-chart/]

🔗bigandrewm@...

Made the corrections, at least I think.