Treble Coupler Notation ( the dots )

[wirralaccordion]

Is there a common standard for this?
Most accordions show the dots but not a description of what the sound actually is. And on the odd occasions when the sounds are also described in writing they are not always the same! Is this due to them being a function of the specific accordion or is it due to the subjective opinion of the manufacturer?
e.g. on one accordion I have seen SAX represented by 2 dots in the middle reeds ( extreme right plus extreme left ) plus one on the lower reed whilst another accordion SAX is represented by just the extreme dot on the right in just one middle reed plus one on the lower reed.
This is for a LMMM accordion where all dots shown is described as MASTER and three middle dots MUSETTE and two righter dots VIOLIN.

 

[JIM D.]

See here --
https://en.wikipedia.org/wiki/Accordion_reed_ranks_and_switches

 

[wirralaccordion]

Thanks Jim, interesting but SAX seems to be missing from this list although all the others are there.
I wonder what makes a better accordion, one with more registrations or one with repeats. e.g. an 11 treble couple model might have the same five different couplers on either side of the central master or eleven entirely different ones including the master in the centre..

 

[Nuuksu]

I have seen mostly dots. Names may differ from country to country and from maker to maker. I have Panacordion PA which came from Argentina, it have coupler names in spanish. In sheet music I have seen mostly dots, very rarerly bassoon or musette is mentioned.