Tallis, Spem in alium (Voronoi+40 lines)

Spem in alium, by Thomas Tallis, performed by the Taverner Choir, accompanied by an animated graphical score. FAQ Q: I’m having trouble understanding this video. Please explain what I’m looking at. A: In the first version of this video, notes were assigned to layers according to which choir was singing them, and the notes were sized, colored and drawn according to layer (to work with Chromadepth 3D glasses )... ... which makes the notes of all 40 (!) voices dist