Since ten years I get copyright notices fom Yotube for every second upload to my channel on Yotube. I uploaded more than 560 videos produced by myself but every single one contains music from different sources. In many cases the sound of a video was muted because it contained only a few minutes with music from The Beatles, Bob Dylan or Hans Albers a.s.o. But Youtube even blocked music from Bach, Beethoven or myself. Most times these clips were only muted in Germany. Since GEMA of Germany and Youtube settled their year long battle over the amount of loyalties to be payed by Youtube I regarded the copyright question as solved.