The composition of Richard Strauss is now worldwide royalty free (also in Germany, Europe...) since 01.01.2020. More information here: <a rel="nofollow" class="external autonumber" href="https://www.br-klassik.de/themen/klassik-entdecken/richard-strauss-musik-wird-gemeinfrei-ab-2020-100.html">[1]</a> and also here <a class="external autonumber" href="https://de.wikipedia.org/wiki/Wikipedia:Public_Domain_Day/2020_in_Public_Domain">[2]</a>
<a rel="nofollow" class="external text" href="https://filmmusic.io/artists/profile/1-sascha-ende/">Sascha Ende</a>
CC BY 4.0
<a rel="nofollow" class="external text" href="https://filmmusic.io/song/5730-also-sprach-zarathustra/">Also Sprach Zarathustra (feat. Richard Strauss)</a>