Sound visualisation

During this lecture we watch multiple videos on artists influenced by sound and how they interepited the music piece, I perticually liked renment V2 by Jay Payne, the video contained what looked like shiny material on a speaker, which it was. The camera was out of focus which worked really well. The music which was in the background was quite relaxing which worked really well with the video. Because the  camera was out of focus ment you really had to concentrate to try figure out what was happening in the video which I thought worked really well to the relaxing music.