If we are going to look into the lives and the beliefs and doctrines of every artist around the world, I'm sure we won't be able to perform, at least here in Israel, a lot of music, i think in the 21st century, there should not be censorship, definitely not of artists, especially those who lived in Germany and tried to remain alive. Some did it because it is what they felt, some believed (in Nazi ideology), others didn't.