D
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I would like to start a specific topic on CBA (chromatic button accordion) keyboard layouts.
A plea for monocolour and unmarked buttons on the CBA in accordion teaching and music schools.
(I hope a few accordion teachers will read this topic)
Equal tuning, equal intervals, equal patterns, uniformity in keyboard layout, uniformity in fingering in different tonalities, same colour for all buttons.
In one word, I like the simplicity of this system. Because it makes learning the CBA (and music theory in general) easier.
Equal opportunities for all music notes
C major no longer rules the world in equal temperament. Every music note can take the role/function of the tonic.
Marking the C and F buttons is disturbing when the CBA student/player has to change music key in a music piece.
Because the C or F notes change function, and eg the C note no longer is the tonic. So there is no reason to mark the c button and increase its importance in relation to other music notes.
For comparison, the stradella bass is a perfectly regular layout of the bass notes, arranged in fifths.
Usually the stradella bass buttons are monocolour.
So why is it necessary to keep sticking to using bicolour buttons for the CBA right hand side?
This tradition is a relic from earlier times, prior to equal tunings.
Its a good thing that the present Castelfidardo accordion makers offer monocolour buttons CBAs in their catalogues.
In the past, most CBAs had monocolour buttons.
The colouring of the stradella bass side has adapted to equal tuning (this means monocolour), the colouring of the CBA melody side has not yet adapted to equal tuning. Thats my point, compare this with Ernest Closson and his remark on the piano layout.
In a context of equal tuning for music instruments, there is no sense in discriminating between music notes.
And there is no sense in discriminating between music scales (diatonic, pentatonic, chromatic, ...) by giving the diatonic scale a particular colour.
https://en.wikipedia.org/wiki/Equal_temperament
quote: the frequency interval between every pair of adjacent notes has the same ratio
equal perceived distance from every note to its nearest neighbor
Dominique Waller has written an interesting article on the implication of equal temperament on the design of keyboard layouts. Unfortunately, he still sticks to different colours on a uniform layout like the Juan Caramuel y Lobkowitz/Janko keyboard or CBA.
My plea is to get rid of the different colours and use monocolour keys or buttons.
http://www.le-nouveau-clavier.fr/english/
quote: In his History of the piano, Belgian musicologist Ernest Closson noted: “The major, fundamental drawback of the keyboard still consists in its irregular and illogical layout, which results from the very conditions of its slow and groping development. If the system of twelve semitones had been established all at once, one wouldn’t have failed to adapt to it the keyboard as a whole, giving each key equal importance.”
A plea for monocolour and unmarked buttons on the CBA in accordion teaching and music schools.
(I hope a few accordion teachers will read this topic)
Equal tuning, equal intervals, equal patterns, uniformity in keyboard layout, uniformity in fingering in different tonalities, same colour for all buttons.
In one word, I like the simplicity of this system. Because it makes learning the CBA (and music theory in general) easier.
Equal opportunities for all music notes

C major no longer rules the world in equal temperament. Every music note can take the role/function of the tonic.
Marking the C and F buttons is disturbing when the CBA student/player has to change music key in a music piece.
Because the C or F notes change function, and eg the C note no longer is the tonic. So there is no reason to mark the c button and increase its importance in relation to other music notes.
For comparison, the stradella bass is a perfectly regular layout of the bass notes, arranged in fifths.
Usually the stradella bass buttons are monocolour.
So why is it necessary to keep sticking to using bicolour buttons for the CBA right hand side?
This tradition is a relic from earlier times, prior to equal tunings.
Its a good thing that the present Castelfidardo accordion makers offer monocolour buttons CBAs in their catalogues.
In the past, most CBAs had monocolour buttons.
The colouring of the stradella bass side has adapted to equal tuning (this means monocolour), the colouring of the CBA melody side has not yet adapted to equal tuning. Thats my point, compare this with Ernest Closson and his remark on the piano layout.
In a context of equal tuning for music instruments, there is no sense in discriminating between music notes.
And there is no sense in discriminating between music scales (diatonic, pentatonic, chromatic, ...) by giving the diatonic scale a particular colour.
https://en.wikipedia.org/wiki/Equal_temperament
quote: the frequency interval between every pair of adjacent notes has the same ratio
equal perceived distance from every note to its nearest neighbor
Dominique Waller has written an interesting article on the implication of equal temperament on the design of keyboard layouts. Unfortunately, he still sticks to different colours on a uniform layout like the Juan Caramuel y Lobkowitz/Janko keyboard or CBA.
My plea is to get rid of the different colours and use monocolour keys or buttons.
http://www.le-nouveau-clavier.fr/english/
quote: In his History of the piano, Belgian musicologist Ernest Closson noted: “The major, fundamental drawback of the keyboard still consists in its irregular and illogical layout, which results from the very conditions of its slow and groping development. If the system of twelve semitones had been established all at once, one wouldn’t have failed to adapt to it the keyboard as a whole, giving each key equal importance.”