Graham Breed MIDI Relay

Today I had the good fortune to hang out most of the afternoon with
Paul Erlich, who happened to be in New York.

Of course, we were working on my "MIRACLE" keyboard ("21-blackjack")
and, hopefully will develop further ear training for this scale.

Paul was interested in getting his friend Ira up to speed on
blackjack, and his synthesizer is not so tunable, so I recommended
Graham Breed's MIDI Relay ("Ta Da"), that useful tool I am always
talking about. I think that will work for Ira...

HOWEVER, we were trying to get the Midi Relay to put the beginning of
the blackjack scale on C4.

I took the blackjack file in Scala and mapped it to "C-linear" with
load/map clinear, and I am sure it's working, since the "0" point of
the scale is on 261 Hz, "middle- C".

My TX81Z works GREAT with this and I "DO" have "middle C," BUT the
MIDI RELAY is doing something different.

How do we get the MIDI RELAY to recognize the "load/map clinear"
so "middle C" is the first note of the blackjack scale?

We were getting something else...

Any help here, Graham, would be greatly appreciated!

________ ________ ______
Joseph Pehrson

Joseph Pehrson wrote:

> How do we get the MIDI RELAY to recognize the "load/map clinear"
> so "middle C" is the first note of the blackjack scale?

Download the source code, get a copy of Borland C++ 5 and try to recompile
it with this modification :(

> We were getting something else...
>
> Any help here, Graham, would be greatly appreciated!

All scales are mapped starting with the lowest MIDI note (C-2 by my
calculations, the key being C3=3C). So to get it where you want, you have
to work out what order the notes should start in for it to magically
appear in the right place.

I think the tonic command might to the trick. Here's a line I took from
one of my schismic files:

tonic 48 8.455

The first number is the MIDI note taken to be note zero. 64 is middle C
so

tonic 64 8.04

may work. It's so long ago I can't even remember what my own software
does, but I think this is the way :) It has to be placed near the top of
the scale. Not being the Stradivarius of tuning software, you have to
watch out for blank lines in tuning files as well, even at the end.

Graham

--- In tuning@y..., graham@m... wrote:
> Joseph Pehrson wrote:
>
>
> > How do we get the MIDI RELAY to recognize the "load/map clinear"
> > so "middle C" is the first note of the blackjack scale?
>
> > We were getting something else...
> >
> > Any help here, Graham, would be greatly appreciated!
>
> All scales are mapped starting with the lowest MIDI note (C-2 by my
> calculations,

It seemed that on Joseph's keyboard, the mapping would be beginning
an octave below C0, so C -1.

> the key being C3=3C).

What do you mean by "key" here as opposed to "note" above?

> So to get it where you want, you have
> to work out what order the notes should start in for it to
magically
> appear in the right place.

Ah -- that shouldn't be too hard.

Paul wrote:

> > the key being C3=3C).
>
> What do you mean by "key" here as opposed to "note" above?

It's the way I remember MIDI numbering, and I hope I haven't been getting
it wrong all these years. 3C is hex for <reaches for calculator> 60. And
C3 happens to be MIDI note 60. Which I said before is middle C. I
thought that was C4. I dunno, something like that anyway.

Graham

--- In tuning@y..., graham@m... wrote:

/tuning/topicId_23867.html#23884

>
> All scales are mapped starting with the lowest MIDI note (C-2 by my
> calculations, the key being C3=3C).

That's kind of what we were thinking... Oh well, personlly, I think
I'll try to use it this way, since it doesn't seem so easy
to "adjust" it...

Great product, though, anyway. I suppose the idea of mapping with C4
as a possible starting point could be a future "enhancement" if you
are ever thinking of such...

______ ______ ________
Joseph Pehrson

--- In tuning@y..., jpehrson@r... wrote:
> --- In tuning@y..., graham@m... wrote:
>
> /tuning/topicId_23867.html#23884
>
> >
> > All scales are mapped starting with the lowest MIDI note (C-2 by
my
> > calculations, the key being C3=3C).
>
> That's kind of what we were thinking... Oh well, personlly, I
think
> I'll try to use it this way, since it doesn't seem so easy
> to "adjust" it...

It should be very easy to adjust the Scala file so that C4 is the "0"
point when you use Graham's MIDI Relay. I'm still in NY today -- if
you like, I'll come over and help you out. Otherwise, all the chord
charts will have to be redone :(

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

/tuning/topicId_23867.html#23899

> --- In tuning@y..., jpehrson@r... wrote:
> > --- In tuning@y..., graham@m... wrote:
> >
> > /tuning/topicId_23867.html#23884
> >
> > >
> > > All scales are mapped starting with the lowest MIDI note (C-2
by
> my
> > > calculations, the key being C3=3C).
> >
> > That's kind of what we were thinking... Oh well, personlly, I
> think
> > I'll try to use it this way, since it doesn't seem so easy
> > to "adjust" it...
>
> It should be very easy to adjust the Scala file so that C4 is
the "0"
> point when you use Graham's MIDI Relay. I'm still in NY today -- if
> you like, I'll come over and help you out. Otherwise, all the chord
> charts will have to be redone :(

Hi Paul!

Thanks for the info. Sure, if you're around that would be great,
although most probably I will not be using the MIDI Relay for
composing... I'm using the synth set-up for that. So, the chord
charts don't have to be re-done...

Probably, though, it would be a good idea to figure out how to set
the MIDI Relay to start at C4, since I use the MIDI RELAY for
general "R&D" with scales...

I should probably know how to set it like that for ANY scale...

best,

___________ _________ _______
Joseph Pehrson