This is amazing to me ~ Beautiful and Astonishing!
Eric Whitacre is a composer who had an idea to create a “Virtual Choir” of 100 people singing the various parts to his a cappella choral composition called SLEEP. It is amazing musically, and also technically. I can’t even begin to understand how all the various videos and sound tracks were incorporated into one video to produce this “virtual choir.”
Watch (and listen to) this beautiful video:
How they did it: http://tinyurl.com/yd6yjwj
"In music one must think with the heart and feel with the brain." ~George Szell