Try to get in touch with Jorge Prats. He's emeritus faculty from ModLang and grew up in Barcelona. I think he also lives there for most or at least part of the year. He helped the choir with their recent trip. Also, Prof. del Prado is also a Barcelona (err...Barthelona) native.
I'm a random Knox student who stumbled here a bit ago. This caught my interest; I'm going to be conducting research in Barcelona for most of July. Toni Prado and Robin Ragan may be there near the end of the month, too.