Larynxes in Action!

Here is a video of the vocal folds of four singes performing a Victoria Kyrie:
http://youtu.be/-XGds2GAvGQ

Moses Hogan Music Down in My Soul

Here is a link to an audio performance (SSA): http://www.jwpepper.com/3297947.item And here is a pretty good SATB version: http://www.youtube.com/watch?v=J_LgwE2OvgU