Weltmeister LOGICORDEON

[Corinto]

Any experience with this Weltmeister LOGICORDEON Janko keyboard accordion?

link here = http://www.musiker-laden.de/tasteni...opf-akkordeons/knopfakkordeon-logicordeon.php

The Janko keyboard is a logic keyboard where ALL keys have the same fingering as soon as you have 3 rows.

http://www.thecipher.com/Janko_spell_2oct_1clr.gif

The LOGICORDEON has 68 keys for 34 notes, 72 bass, and is not a compact accordion: 372 mm x 195 mm x 415 mm; weight = 8,100 kgs.

The CBA system allows for a more compact accordion, and with 5 rows you also can play in all keys with the same fingering.

Curious about reading comments from the experts here at the forum.

 

[Deleted member 48]

Have seen someone playing a logicordeon type of accordion, his version was a row: 2 rows (6+6) and 1 extra repeat of the first row, is enough to play with one single fingering in all keys.

This system goes back to the 17th century in organ and harpsichord keyboards (see Juan Caramuel y Lobkowitz circa 1654, the organum panarchicum, and Conrad Henfling in 1708/1710).
Patrizio Barbieri wrote an article in 1987 about the history of the Janko keyboard. Janko was only one of the many who used this 6+6 layout on piano.

James A. Bazin made a seraphine, pre harmonium type, ca 1835 with the same 6+6 layout:
http://www.waymarking.com/waymarks/WMH58R_Seraphine_Old_Colony_Historical_Society_Museum_Tauton_MA
(it is the 3rd photo)

There is a photo dated 1906 of Pietro Giuffrida (aka Pietro Frosini) playing this type of 6+6 free bass accordion. The photo can be seen here:
http://www.accordionusa.com/fe_03_07.htm

Pietro Frosini in this 1906 photo may be holding an accordion by Rosario Spadaro, who is said to have patented in 1890 this 6+6 free bass type on the accordion. This info is on the Castelfidardo town website:
http://www.comune.castelfidardo.an.it/visitatore/index.php?id=400027

This logicordeon layout definitely is a very good layout for piano accordion players looking for easier alternatives to the (unequal) 7+5 piano keyboard layout.

 

[Nuuksu]

I find some pictures

About picture in this video Im not sure is it really Gennaro Ruffolo - it is at 0.20



From pictures it dosnt seem to very promising. I think if adding notes it quicly growing in size like PA. Tradiotional chromatic button systems work quite well in this regard, just adding five notes doesnt grow its size very quicly because many allready have cosmetic silent buttons.

 

[Deleted member 48]

This Robotti photo reminds me of the old Reuther 6+6 keyboard layout for accordions, these were the first designs, with buttons that were way too big. There is no reason to make these buttons so big.

The Weltmeister version is much more compact and uses the usual little round accordion buttons, used in CBA accordions. The Weltmeister way is a better way to make 6+6 button layouts.

There's also no reason to make 6 rows. You can see in the drawing the first 3 rows are enough (2 rows + 1 repeat row of the first row).
The 6 row version is just a repetition of the 3 rows ( (2+1)+(2+1) ).
With 3 rows you can play everything up (starting from the 1st or 2nd row), or everything down (starting from the 3rd (the repeat row) or 2nd row).

 

[jjj333]

It's a bit limited. I wished it had at least 42 notes and 120 bass... and it wold be an electronic version, something like Roland accordions at an affordable price.

 

[jjj333]

It would be great to have a light, ergonomic accordion (like the French "Dualo"), with a Janko treble and a 120-button Stradella bass.
The Roland accordion is great, but too bulky and heavy...

 

[Corinto]

Weltmeister LOGICORDEON pictures

http://www.caballo.com/002015Files/Logicordeon1.jpg

http://www.caballo.com/002015Files/Logicordeon2.jpg

http://www.caballo.com/002015Files/Logicordeon3.jpg

 

[Corinto]

Its a bit limited. I wished it had at least 42 notes and 120 bass ...

34 notes is more then enough for my tunebooks ...
but I would like it to have 80 (16x5) basses ...

at least one of these Weltmeister LOGICORDEONs was converted to 96 basses (16x6 - photo annex), more info about this at the german forum www.musiker-board.de, ... 

 

[Deleted member 48]

A 3-rows chromatic button accordion with 4+4+4 layout (semitones layout, or minor thirds layout) (B-system or C-system) can be transformed into a 3-rows Janko or Beyreuther layout chromatic button accordion with 6+6 layout (semitones layout or wholetone layout).

You can rearrange or change the reedplates on the reedblocks on a 3-rows CBA accordion.

You could also make the 3rd row a repeat row of the 1ste row. This way you can transform a 3-rows CBA into a 6+6 Janko accordion.

On any type of Stradella bass accordion with 3 rows (a 40, 48, 60, 80, 72, 96, 120 bass).
I know some people are trying to find a new or secondhand Weltmeister Logicordeon. Converting a 3-rows CBA to Janko/Beyreuther is another option.

The Janko or Beyreuther accordion layout is interesting for pianists or piano accordionists who are used to play on 2 rows (the diatonic row with white keys and the black keys with the sharps/flats )

With this Janko/Beyreuther layout on the button accordion, you can play every piece with a single fingering and transpose it to every music key.
With a 3-rows CBA, you still need 3 different fingerings for C, G and D scales (if you don't have a 5-rows CBA with the 2 repeat rows).

The Janko/Beyreuther 6+6 accordion is not so ergonomic as a CBA (4+4+4), when you have to start speeding up the scales with parallel thirds, sixths, octaves.
With CBA layout playing speedy scales with parallel intervals is much easier. The finger spread is easier on CBA when it comes to gripping chords.

I think the 6+6 logicordeon is a step forward compared to the traditional piano accordion layout, because you can play in all music keys with unique fingering.
But compared to CBA, the logicordeon layout is not as flexible as the CBA layout.

 

[Corinto]

You can rearrange or change the reedplates on the reedblocks on a 3-rows CBA accordion. You could also make the 3rd row a repeat row of the 1ste row. This way you can transform a 3-rows CBA into a 6+6 Janko accordion.

Yes, this was the first option. And now I have a few small converted CBA to Janko, old Hohners from the 1930 decade, a CORNELIA I, a LUCIA and a PIROL.

I know some people are trying to find a new or secondhand Weltmeister Logicordeon.

Well, yes, Weltmeister Harmona made a batch of about 50 Logicordeons in or before 2011. Me too I had been looking for a secondhand Logicordeon for years ... as these disappeared from the Weltmeister website, I assumed they were all gone ...

But then, two weeks ago I thought I just might ask them, maybe they still have a few of these just waiting for me there ... and bingo, they still have five, white ones ... and very fair price ... mine is now being fully checked in Klingenthal and may arrive here in about 10-15 days ... isn't that great ...

And now I've also found a teacher willing to help me, Skype lessons, so ain't I a lucky granddad? Of course, ymmv.