Lao Tzu has a nice way to phrase a provocative idea that also occurs to some theologians wrestling with theodicy. Briefly, we need evil to appreciate good, ugliness to appreciate beauty, and so on. But we don’t.
Yes, it would be tiresome to hear a jazz classic like *Take Five* over and over. But I can listen to Brubeck one day and Brahms the next. While I do need variety in the good music I hear to appreciate its goodness, I definitely do not need to listen to schlock.
Short Wisdom 
Lao Tzu has a nice way to phrase a provocative idea that also occurs to some theologians wrestling with theodicy. Briefly, we need evil to appreciate good, ugliness to appreciate beauty, and so on. But we don’t.
Yes, it would be tiresome to hear a jazz classic like *Take Five* over and over. But I can listen to Brubeck one day and Brahms the next. While I do need variety in the good music I hear to appreciate its goodness, I definitely do not need to listen to schlock.