Re: LilyPond's 'oldEE' accordion symbol

[Owen Lamb]

> > I have searched most of my accordion literature, both old and modern
> > norwegian and german publications, some old sovjet accordion books
> > and old american publications like the one I sent you a snapshot of
> > earlier.  I only find the (R) and (*) symbols in the publications
> > from Alfred Music in New York.  These are single scores with no
> > editorial.  So I have no more sources than what I can google.
> Thanks a lot for the details!

Yes, thank you!

In that case, I propose the SMuFL name for the glyph be 
accdnClosedSwitchOld, seeing as:

* "CLOSED SWITCH" was said to stand in for the symbol in the one 
contemporary explanation found (/Deiro's Royal Method/, 1936), and
* the suffix -Old is well-attested in SMuFL, clueing the user in to a 
glyph's obsolescence. (I can't find an example of -Old being used 
without there being a non-Old counterpart, but I don't think the absence 
of an accdnClosedSwitch glyph will be surprising to any accordion engraver.)

Objections/suggestions/refinements?