Re: Terpstra keyboard is here! ---- Felicitations! Exciting progress.

Do you have any further details available?
I am interested to understand the possibilities, as the Bosanquet keyboard mapping has always seemed to me to be a very practical interface for tunings using more than 12 notes per octave simultaneously.

About twenty years ago I looked at this layout, yet at that time did not have the resources to put it into practice.

see:

http://www.lucytune.com/midi_and_keyboard/hexboard.html

for how it can work for any meantone tuning

I am curious to know how you envisage mapping the outputs of each of the keypads to trigger different midinotes.
It raises many exciting possibilities.
Are you:
a) using more that one sequencer/synth?
b) using a midi mapping converter to drive a single DAW?
c) Can you drive all midi outputs into a single sequencer to generate more than 12 notes per octave?

Is it possible to visit Queens and take a look at what you have got working?
Has anyone made a video of the installation, which could be put on the net?

I wish you well with this exciting development.

Charles Lucy - lucy@lucytune.com ------------ Promoting global harmony through LucyTuning ------- for information on LucyTuning go to:
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--- In tuning@yahoogroups.com, Charles Lucy <lucy@...> wrote:
>
> Do you have any further details available?
> I am interested to understand the possibilities, as the Bosanquet
> keyboard mapping has always seemed to me to be a very practical
> interface for tunings using more than 12 notes per octave
> simultaneously.
>
> About twenty years ago I looked at this layout, yet at that time
did
> not have the resources to put it into practice.
>
> see:
>
> http://www.lucytune.com/midi_and_keyboard/hexboard.html
>
> for how it can work for any meantone tuning
>
>
> I am curious to know how you envisage mapping the outputs of each
of
> the keypads to trigger different midinotes.
> It raises many exciting possibilities.
> Are you:
> a) using more that one sequencer/synth?
> b) using a midi mapping converter to drive a single DAW?
> c) Can you drive all midi outputs into a single sequencer to
generate
> more than 12 notes per octave?
>
> Is it possible to visit Queens and take a look at what you have
got
> working?
> Has anyone made a video of the installation, which could be put
on
> the net?
>
> I wish you well with this exciting development.
>
>

***Hello Charles Lucy,

Well, some of this is a bit preliminary, since we are still trying
to get the Bosanquet-based keyboard to work properly. One "octave"
is still out.

Yes, presently it is mapped to 55-equal, with 56 keys for each
octave, as I understand it. The tonics are necessarily duplicated
for each octave.

This is done through Scala with a new mapping utility that makes it
possible to have the five different segments of the keyboard on five
different midi channels, and have them mapped to different octaves.

The "generic" mapping for the keyboard is 55-equal, as I understand
it.

HOWEVER, Joel Mandelbaum wants it mapped to 31-equal and has a
mapping worked out.

I have just learned that the mapping software was included with the
CD that came with the instrument. I was not installing that CD, and
was not told of this when it was done. I think it was done a bit
quickly.

Apparently, it is possible to affect ANY mapping of the 5-octave,
56 note octave keyboard using this software, so 31 and all the other
meantones should be accomodated. In fact, I know that Joel
Mandelbaum is concerned in keeping the diatonic keys on the "white
keys" of the instrument. (I have a photo of the instrument now on
the "photos" area of this website...)

Joel Mandelbaum at Queens College will, ultimately, be the person to
talk to regarding the microtonal mappings, but they really haven't
been set up yet, so all of this is preliminary.

After it's set up and he is using it, most probably he would welcome
a visit to discuss it and explore other possibilities, although I
cannot speak for him.

Thanks for the interest!

Joe Pehrson