Answer is reasonably comprehensive, could perhaps be improved a bit by
organizing schools into groups according to the type of program
offered. Answer gives some good starting points and examples of types
of programs, but still not completely clear what might be missing from
the picture.  In any event, a good effort, my original question
appears to be unanswerable since what I was seeking doesn't exactly
exist, but this give me something to go on.

Thank you for your very in-depth response!  I appreciate your help
very much.  Thanks for the advice!

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Excellent job
WEll done!

To: waggawa-ga 

You got it!
It was the first one:
Gicar, SRL 
23807 Merate (LC) - VIA COMO 20 
tel: +39 (0) 39 9906035   

Thx a lot,
- Leor

The answers are well supported by references to style guides, and are 
courteously and well constructed.

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excellent and well thought out answer.  It helped me expand my search.

Very comprehensive answer. thanks!

There are a couple of big problems with this answer.  First off, in asking for 
the forgotten musicals of the 40s, 50s, and 60s, I certainly wasn't looking for 
something like The Fantastiks, which is one of the longest running and best 
loved musicals of all time.  Also, shows like She Loves Me include a chorus 
which takes the cast size up to almost 30 people, clearly out of the range of 
what I asked for.  The website given in this answer is a licensing company, 
which, while their search option is easy to use, only searches for the musicals 
in their catalogue, a very small number.  Overall, this answer gave me a couple 
of new ideas, but it really only gave me a surface overview of one company's 
catalogue (as opposed to a comprehensive look at the musicals of a bygone era).

Great value and very timely.  However, I still think that Americans with some 
professions can get residence permits under the treaty - and this was the 
definitive question.

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This answer has not been rated.