EdBouchard
Member
Good point! On a Roland with a PA treble keyboard, a C-system free bass would be quite intuitive for this immediate need.Interesting kerfluffle on a subject of interest in an accordion forum.
The point of the orignal question was which system is suited for
Given that Ms. R probably intends to play this on her compact Roland -which would allow her to use many schemes, none of which match the range (or heft) of the Steinway minus steamer trunk models of the mega accordions discussed above- the real issues at hand are; applicablilty, ease of learning, and most likely to enhance her existing skill set.
For whatever musical demands might come up in the future, a chromatic free bass is a proven good choice. It’s such a logical layout, which is why it’s also often a preferred choice for the treble keyboard too. I don’t believe anyone has ever made a custom quint treble keyboard.