Re: Solar system chord

Hi Joseph,

To help with analysing the chord, here it is reduced into an octave:

neptune venus earth mars saturn jupiter uranus
1/1 78.466 437.38 543.77 580.68 955.44 1166.4 cents

Or, making Saturn into the 1/1

saturn jupiter uranus neptune venus earth mars
1/1 374.8 585.7 619.3 697.8 1057.0 1163.0
1/1 5/4~ 7/5~ 10/7~ 3/2~ 11/6~ 45/23~
(nearest ratios to within 12 cents)

The nearby ratios as cents are:
1/1 386.31 582.51 617.49 701.96 1049.4 1161.9

/tuning/topicId_11954.html#11995
:

> The 'major chord' effect is due mainly to Saturn, Jupiter, and
> Venus, with Mars reinforcing Saturn 4 '8ves' higher. Earth
> adds most of the piquancy with a pseudo-'major 7th'.

So the extra notes over Monz's description are neptune uranus and neptune.

(second, and first notes heard)

They are at 7/5 and 10/7

In his original version of his piece, they are very low in pitch, and he uses
midi note 0 as the 1/1 for pluto.

http://www.egroups.com/files/tuning/monz/solarsystem/Solar2.mid

Here is the solar system chord with varying pitch again, using the original pitch and voicing
(all to reed organ), except that I've fine tuned it up by 10 cents to
keep Mars within the default MIDI pitch bend range:
http://homepage.ntlworld.com/robertwalker/fts/jm_sol_sys_chord_orig_pitch_p10_m0.2hz.mid

Here it is to the exact pitch:
http://homepage.ntlworld.com/robertwalker/fts/jm_sol_sys_chord_orig_pitch_m0.2hz.mid
(but mars won't be able to go to the extreme lowest point of its pitch range for this one)

Here is a first approx at effect of a rather fast comet fly by, rising in pitch, so
corresponding to the comet slowing down in angular velocity, so this is the
second half of the path, from the sun outwards.

It's just linear, rather than using the correct formula, but will give a first idea of how
the chord changes as the pitch rises.

Ends very high in pitch, because comet angular velocity is close to 0, and so relativily,
the pitches of all the planets seem very high.
http://homepage.ntlworld.com/robertwalker/fts/comet_fly_by.mid
(88 kb)

Also switched off the "vibrato" of the planets.
So includes Pluto and Mercury (though Mercury starting at MIDI note 120 is rather high to hear,
dep. on soundcard / synth).

The 12-tet effect is because it has to keep resounding the notes (not so noticeable
with reed organ as some other voices). Will be okay when
I add option to change the pitch bend range to the entire range of MIDI notes
(at least on synths / soundcards that support that).

(N.b. wave table soundcards can do strange things sometimes with notes well outside the natural pitch
of instruments - I get rather wierd, though nice, descending glissandi and other effects when playing it
on my SB Live wave table synth, and it sounds better on the non wave table one).

It is just meant as a first preview of what it will be like, but imagine anyone whose been involved
in Monz's project might be interested to hear it, and comment, at this stage, which is why I posted
it to the TL.

Will prob. be a few weeks before I get down to doing it properly - some time after starting
on FTS 1.10....

Robert

--- In tuning@y..., "Robert Walker" <robert_walker@r...> wrote:

/tuning/topicId_18389.html#18389

> Hi Joseph,
>
> To help with analysing the chord, here it is reduced into an octave:
>
> neptune venus earth mars saturn jupiter uranus
> 1/1 78.466 437.38 543.77 580.68 955.44 1166.4 cents
>
>
> Or, making Saturn into the 1/1
>
> saturn jupiter uranus neptune venus earth mars
> 1/1 374.8 585.7 619.3 697.8 1057.0 1163.0
> 1/1 5/4~ 7/5~ 10/7~ 3/2~ 11/6~ 45/23~
> (nearest ratios to within 12 cents)
>
> The nearby ratios as cents are:
> 1/1 386.31 582.51 617.49 701.96 1049.4 1161.9
>
> /tuning/topicId_11954.html#11995
> :
>
> > The 'major chord' effect is due mainly to Saturn, Jupiter, and
> > Venus, with Mars reinforcing Saturn 4 '8ves' higher. Earth
> > adds most of the piquancy with a pseudo-'major 7th'.
>
> So the extra notes over Monz's description are neptune uranus and
neptune.
>
> (second, and first notes heard)
>
> They are at 7/5 and 10/7

Thank you very much, Robert, for your excellent elaborations of the
Monzo project! It sounds like you have surely increased the
"accuracy" of the orbital variations, particularly as they change.

I particularly enjoyed the "comet..."

I wonder if some institution like the Hayden Planetarium here in New
York would be interested in such music??

_______ ____ ____ __
Joseph Pehrson