visa for internation orcehstra

Dear Sir/Madam,

I would kindly ask you to help me with the following question:

we are international orchestra Kremerata Baltica, and we plan the trip to China (Oct 22~26, 2012) and Hong Kong (Oct.14~16), and Korea (Oct. 16~22).

Unfortunately we have very busy schedule before this trip, we are not staying in any place longer then couple of days. The only place where we could apply for working visa for China and Hong Kong would be Vienna.
We will have the concert in Austria (Eisenstadt) and will stay there Sep. 30 to Oct. 8

I am a manager of this orchestra and I have residence permit in Austria. All other musicians are not Austrians and don't have the permit.
(we have musicians from:
9 Latvia
12 Lithuania
3 Estonia
1 Russia
1 Ukraine)

Could you please let me know if there is any chance we could apply for the visa in following way: I myself would bring all passports with signed visa applications. I could also make a signed document from everyone allowing me apply for their visas if needed, and I would also pick it up myself.

So:
is there a possibility to make such an exception to apply for visas without Austrian residence permit
and
would it be possible to make the whole procedure without our people coming to the embassy.

I would really appreciate if you could help me with these questions.

With best regards,

Ruta Lipinaityte, PhD
Kremerata Baltica
Office manager
4369919455550