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need new color chart from Dave Keenan!

🔗jpehrson@rcn.com

11/25/2001 6:19:15 PM

Hi Dave and everybody!

Paul Erlich and I were discussing the fact that we now need one of
the "adapted" Dave Keenan color charts for Blackjack, corresponding
to the new C-G-D-A standard.

I've pretty much figured how to get the new standard to work with
Scala, so I'm about ready to "tune up!"

It's true, I like that long chain on the lattice with *naturals*
rather than quarter-tone flats as they exist presently...

My current electronic piece needs to remain in C-F-G, but the next
piece, for cello, will be in the C-G-D-A standard.

Let's hope we *keep* that standard for awhile! It's going to be
especially tough on Alison, if she's making *physical* instruments to
it to change...

best

Joseph

🔗Dave Keenan <D.KEENAN@UQ.NET.AU>

11/25/2001 9:33:55 PM

--- In tuning@y..., jpehrson@r... wrote:
> Hi Dave and everybody!
>
> Paul Erlich and I were discussing the fact that we now need one of
> the "adapted" Dave Keenan color charts for Blackjack, corresponding
> to the new C-G-D-A standard.

Which is that? The circular pitch chart or the keyboard colouring?

> I've pretty much figured how to get the new standard to work with
> Scala, so I'm about ready to "tune up!"

How many naturals make it onto white keys with the mapping you're
using?

> It's true, I like that long chain on the lattice with *naturals*
> rather than quarter-tone flats as they exist presently...

Good!

> My current electronic piece needs to remain in C-F-G, but the next
> piece, for cello, will be in the C-G-D-A standard.

Fabulous.

> Let's hope we *keep* that standard for awhile! It's going to be
> especially tough on Alison, if she's making *physical* instruments
to
> it to change...

As I explained in "Apocalypse of the 2 elephants", this was a unique
moment in history where it was _possible_ to set a good standard for
Blackjack. It will not be _possible_ to change it in future,
particularly once Alison's instruments are built.

-- Dave Keenan

🔗jpehrson@rcn.com

11/26/2001 6:21:52 AM

--- In tuning@y..., "Dave Keenan" <D.KEENAN@U...> wrote:

/tuning/topicId_30705.html#30710

> --- In tuning@y..., jpehrson@r... wrote:
> > Hi Dave and everybody!
> >
> > Paul Erlich and I were discussing the fact that we now need one
of the "adapted" Dave Keenan color charts for Blackjack,
corresponding to the new C-G-D-A standard.
>
> Which is that? The circular pitch chart or the keyboard colouring?
>

Hi Dave!

I'm thinking of the great horizontal color chart you did in Word that
showed the physical keys of the keyboard in a rainbow of colors.
However, now that the standard is C-G-D-A, we would need a different
one, I believe...

Additionally, I *personally* would like one that maintains my "middle
C fetish..."

If you can do this, fine. Otherwise, I'll just go through your
lattice and try to map colors to my keyboard which correspond to
consonant tetrads or whatever.

Paul Erlich was showing me some other fascinating asses (burritos,
not the other kind) that had trapazoidal shapes. Wow. Those are
interesting in conjunction with the tetrads! I have to work more
with that stuff...

> > I've pretty much figured how to get the new standard to work with
> > Scala, so I'm about ready to "tune up!"
>
> How many naturals make it onto white keys with the mapping you're
> using?
>

I'll tell you this when I get back home... I'm having trouble
visualizing it at the moment... I'm sure it's not as good as your "C
as B standard" but I *do* have some problems with that which are
pretty self-evident, but which I'll elaborate on shortly (and
briefly...)

> > It's true, I like that long chain on the lattice with *naturals*
> > rather than quarter-tone flats as they exist presently...
>
> Good!
>
> > My current electronic piece needs to remain in C-F-G, but the
next piece, for cello, will be in the C-G-D-A standard.
>
> Fabulous.
>

Well, it only makes sense after a near sleepless night and paranoia.
Thanks a *lot* Dave for these "improvements..." :)

Naturally, I'll want to work with the *naturals* so I can imagine
lots of open strings in this piece. In fact, so nice open string
drones might be nice... and still in Blackjack, of course, with this
new system!

> > Let's hope we *keep* that standard for awhile! It's going to be
> > especially tough on Alison, if she's making *physical*
instruments
> to it to change...
>
> As I explained in "Apocalypse of the 2 elephants", this was a
unique moment in history where it was _possible_ to set a good
standard for
> Blackjack. It will not be _possible_ to change it in future,
> particularly once Alison's instruments are built.
>

OK... and the main reason I "consented" to change was
the "communication" aspect.

However, I would really urge everybody using Blackjack to take the
same course: using the ascii standardization we've set up and the
new "standard key."

That way, we'll "all" be able to make a lot more progress with this
scale!

I'm definitely changing for the cello and electronic piece and for
subsequent works and, in fact, the synth tuning aspect of this piece
has already been solved and set up...

best,

Joseph

🔗Paul Erlich <paul@stretch-music.com>

11/26/2001 6:52:36 AM

--- In tuning@y..., jpehrson@r... wrote:

> Paul Erlich was showing me some other fascinating asses (burritos,
> not the other kind) that had trapazoidal shapes.

I think you mean "parallelogram shapes" . . .

> Wow. Those are
> interesting in conjunction with the tetrads! I have to work more
> with that stuff...

The common-tone possibilities are staggering . . .

🔗jpehrson@rcn.com

11/26/2001 7:02:06 AM

--- In tuning@y..., "Paul Erlich" <paul@s...> wrote:

/tuning/topicId_30705.html#30721

> --- In tuning@y..., jpehrson@r... wrote:
>
> > Paul Erlich was showing me some other fascinating asses
(burritos,
> > not the other kind) that had trapazoidal shapes.
>
> I think you mean "parallelogram shapes" . . .
>

Absolutely! My coffee hasn't "kicked in"... obviously...

Thanks, Paul!

JP

🔗David C Keenan <D.KEENAN@UQ.NET.AU>

11/26/2001 6:22:42 PM

Joseph,

The one you want is now up at
http://dkeenan.com/Music/Miracle/BlackjackHalberstadtC.doc

The two having maximum white naturals (10 out of 12) [I'm certain of this now] are at:
http://dkeenan.com/Music/Miracle/BlackjackHalberstadtD1.doc
http://dkeenan.com/Music/Miracle/BlackjackHalberstadtD2.doc

The first puts the middle-C pitch on the B below middle-C key.
The second puts the middle-C pitch on either the D below middle-C key or the B above middle-C key. It has the advantage of having its point of symmetry nearer the middle of the keyboard.

Whereever middle-C ends up, if you need it as a reference you can easily mark it in some way, and will soon learn it. It's only one note. There are 60 others to learn (of varying degrees of importance). I want to find the keyboard layout that will make it easiest to learn the most important ones.

We might also look at what layouts put the maximum number of 7-limit (otonal?) tetrads or 9-limit pentads on a 61 note keyboard. Or the maximum number of 11-limit dyads.

Regards,
-- Dave Keenan
Brisbane, Australia
http://dkeenan.com

🔗jpehrson@rcn.com

11/26/2001 7:40:16 PM

--- In tuning@y..., David C Keenan <D.KEENAN@U...> wrote:

/tuning/topicId_30705.html#30750

Thanks so much, Dave, for your very fast work with these charts.

At the moment, I'm really not so much into "white supremacy" so I'm
probably going to use the C-base... but I'm studying the others with
great interest as well..

Thanks so much again!

Joseph