single-channel video, source material from youtube
3m2007
7.2·2011
7.3·2018
7.6·1999
7.7·2017
7.4·2017
6.3·2018
6.9·2014
7.2·2022
6.1·2023
6.2·2020
7.1·2020
6.4·2026
6.2·2008
7.5·2013
6.1·1999
5.9·2012
7.7·1978
6.9·2006
5.9·2017
7.1·2019
