I mentioned the Houghton College choir event below. If you want to hear about half of one of the most beautiful new choral pieces they did, it's available here. This is not, however, the Houghton group performing. Info on the piece is printed on the page.
Just as an aside, it seems that Nebraska really has an extraordinary wealth of good music. The Soli Deo Gloria Cantorum is based in Omaha (they recorded my all time favorite choral music CD), plus Wahoo is the birthplace of my personal favorite american composer.