Thank you for bringing up Palestrina. I have wanted to post some good music to the forum. We are fortunate to have so much media easily available today, but there’s nothing like hearing (or singing) it in person.
In case you don’t still have this whole thread open, I found an amazing quartet called New York Polyphony...after hearing them in this video, I’d definitely like to see them in person.
http://www.freerepublic.com/focus/f-religion/3105625/posts?page=11#11
There was an English polyphonic group I got to hear last year. They were on tour and I heard them at the cathedral in Dallas.
Thank you for sharing.