Other instruments

Hi,  Congratulations for your beatiful expressive piano. I tried the demo and i Love it.
I like physical modeling instruments.
I have Arturia Brass and AAS StringStudio; both are good, but Pianoteq is very good. It's very close to a real piano.
I´m curious about what physical modeling technique you used to do pianoteq . Wageguides? Modal? Other? It is suitable to do other string instruments? A violin for example.
I'd like to see a virtual string orchestra made with your technology, with complete control of solo instruments: size, materials,positioning
in a way like wallander brass instruments etc.  A complete string section running on these high end gpu graphics card.
You have plans to do other instruments?
You have any distributor of pianoteq in Brazil?
Thanks

God bless you.
Ricardo Radtke