Prime Concertina

[John Dipper]

Coffee break at the concertina hospital - we were wondering about making a prime concertina - 5 sides on the right, 7 sides in the left - with crazy bellows… 

 

Anglos would have either 31 or 37 buttons. 97 for English systems.

 

 What else would the prime concertina have?

[wunks]

Chromatic down to low cello C, well balanced high and low.

Duet based on the Jeffries ( Anglo ) fan shaped button arrangement for speed and ease of fingering.

Centered on the key of D for ease of play in D,G, A and C with a G to C# overlap.

Bi-sonoric G#/Bb and perhaps some low notes for space considerations.  RH Air thumb key co-opted for Bass notes.  Air moved to 2 highest note buttons for dual control.

Reasonably sized ( 7.25" equivalent ).

 

Make me one soon please 🤣

Edited July 8, 2023 by wunks
correction

[Steve Schulteis]

5 or 7-fold bellows, I suppose. Make sure to count the holes in the fretwork as well.

[Paul_Hardy]

9 hours ago, John Dipper said:

Coffee break at the concertina hospital - we were wondering about making a prime concertina - ...

Anglos would have either 31 or 37 buttons. 97 for English systems.

 

 

Don't you mean 47 buttons for English? Maybe 53 or 61 for extended range? 97 would be prime but excessive.

[JimR]

Three holding points, think EC with wrist strap, on both versions. And the fretwork shows all primes, given space available.

[malcolm clapp]

Tuned to A:443, or maybe A:439

 

(Just wondering what as in the coffee, John?)

Edited July 8, 2023 by malcolm clapp

[Theo]

 The ultimate prime concertina would have the notes tuned to prime number frequencies,  but no human would want to listen to it.

[Chris Ghent]

Why shy away from the first prime number; 2. 

[Anglo-Irishman]

I assume the concertina would have 2 ends, anyway. So in a way, all our bellows-driven instruments are prime.

[Leah Velleman]

On 7/8/2023 at 5:14 AM, Theo said:

 The ultimate prime concertina would have the notes tuned to prime number frequencies,  but no human would want to listen to it.

A just intonation instrument could use prime ratios -- humans like those. 3:2 for a fifth, 5:2 for an octave and a third...

[RAc]

On 7/7/2023 at 10:49 PM, JimR said:

And the fretwork shows all primes, given space available.

Alternatively a design based on primulas.

[Jake Middleton-Metcalfe]

1 free prime concertina given to each new Amazon prime subscriber, so long as the subscribers subscription is a prime number in the list of all subscribers

 

Edit: you might have to make a lot of them though

 

Edited July 15, 2023 by Jake Middleton-Metcalfe

[RAc]

5 hours ago, Jake Middleton-Metcalfe said:

1 free prime concertina given to each new Amazon prime subscriber, so long as the subscribers subscription is a prime number in the list of all subscribers

 

Edit: you might have to make a lot of them though

 

Prime example for a thread in its prime, isn't it? 

 

Now top THIS!

😝

 

[Clive Thorne]

On 7/9/2023 at 1:58 PM, RAc said:

Alternatively a design based on primulas.

Mmmm Cheese.     ........

 

Oh, I see, that sort of primula 🙁

 

 

EDITED FOR CLARIFICATION:  IN the UK "Primula" is a brand of cream cheese.

Edited July 17, 2023 by Clive Thorne

[SteveS]

Why not make 2 asymmetric concertinas - both prime numbers and mathematically related so as to form the secret and public keys of an asymmetric encryption key pair.  Of course, you'd get to play one of them only if the other is present in the same room, otherwise, they'll just play jumbled up notes.

Edited July 16, 2023 by SteveS

[RAc]

5 hours ago, SteveS said:

Why not make 2 asymmetric concertinas - both prime numbers and mathematically related so as to form the secret and public keys of an asymmetric encryption key pair.  Of course, you'd get to play one of them only if the other is present in the same room, otherwise, they'll just play jumbled up notes.

Seriously? I wasn't aware that quantum entanglement stops at bedroom doors...

[conband]

It would definitely need an exra button on each of the three ends to automatically correct  all wrong notes.    Les