Re: organ - off topic

[Gianmaria Lari]

Thanks Martin, Moser and Frauke!

A few days ago I tried to think of a mechanical system to implement the "sustain" and the "sustained" pedal on an *accordion*. 

I found some solutions that didn't seem particularly ingenious and that at least theoretically could work.

So I wondered if these pedals already existed on some organs where there are less size weight issues compared to an accordion.

As you say, probably the reason why these pedals are not there (or are not common) is not a technical one; it's that they are simply not useful or not useful enough on an organ.

Gianmaria

On Thu, 1 Oct 2020 at 13:36, Frauke Jurgensen <fraukevj@gmail.com> wrote:

Some organs have a toy stop emulating bagpipes, which is a single lever that activates two drone pipes (reeds): they are either on continuously, or off. And organ tuners commonly use a key weight to depress individual keys while they are tuning, if they have to tune without an assistant. There are contemporary organ pieces that use multiple key weights for special effects.

> On 1 Oct 2020, at 10:37, J Martin Rushton <martinrushton56@btinternet.com> wrote:
>
> "the church built around many organs" - I like your priorities!  I got in trouble once for similarly suggesting that the purpose of a cathedral was to support the bell tower (we were in the ringing chamber at the time). :-o
>
> On 01/10/2020 10:02, Lukas-Fabian Moser wrote:
>> Hi Gianmaria,
>> Am 01.10.20 um 10:32 schrieb Gianmaria Lari:
>>> Sorry if I ask this question here. I do it as usual because I have a lot of consideration for the people who write on this group and I'm sure someone can help me.
>>>
>>> I'm curious to know if a pipe organ (mechanical) can have a sustain pedal and a sostenuto pedal like a piano. I had a look online but I have not been able to find it.
>> Not that I know of.
>> Or, to be more precise:
>>  * The _soft_ pedal (left, una corda) does indeed have a rough
>>    equivalent on many organs, namely the "Schweller":
>>    https://en.wikipedia.org/wiki/Swell_box
>>  * The _sostenuto_ pedal (middle) can, as far as I know, only be faked
>>    using mechanical devices holding down some keys. And of course, keys
>>    may be stuck also without the player intending it.
>>  * The _damper_ pedal (right, sustain) is built-in to most organs by
>>    virtue of the acoustics of the church build around many organs,
>>    drowning the music in a sea of lingering pitches ;-)
>> Lukas
>
> --
> J Martin Rushton MBCS
>