"Chromatic Arranger Keyboards" is not new, Ketron had it for ages.
I don't think he built it himself, there is some specialized workshops that rebuild keyboards.
I played accordion (just a little out of curiosity) in younger days. Tried both B-Griff (Bajan) and C-Griff (Euro) buttontypes, or as we say here in Scandinavia, Norwegian and Swedish types, as well as Piano type. Bass have not such differences unless it's 'melodybass' type accordions invoved.
Sadly I did not continue the learning curve after I started explore and got hooked on arranger keyboards.
Btw, had to refresh my memory to this part:
In the "B system", the "C" is located on the third row from the right. In the "C system" accordion, the middle "C" is on the row furthest to the right.
B is nearly mirrored compared to C.
Some say the C is the most correct to fit one's hand 'natural' finger setting, but at the end I think it's about what you first get your hands on and start learning that will be the best choice. Some plays both systems equally really good.
I don't think he built it himself, there is some specialized workshops that rebuild keyboards.
I played accordion (just a little out of curiosity) in younger days. Tried both B-Griff (Bajan) and C-Griff (Euro) buttontypes, or as we say here in Scandinavia, Norwegian and Swedish types, as well as Piano type. Bass have not such differences unless it's 'melodybass' type accordions invoved.
Sadly I did not continue the learning curve after I started explore and got hooked on arranger keyboards.

Btw, had to refresh my memory to this part:
In the "B system", the "C" is located on the third row from the right. In the "C system" accordion, the middle "C" is on the row furthest to the right.
B is nearly mirrored compared to C.
Some say the C is the most correct to fit one's hand 'natural' finger setting, but at the end I think it's about what you first get your hands on and start learning that will be the best choice. Some plays both systems equally really good.
Statistics: Posted by Gunnar J — Tue Jan 28, 2025 4:01 pm