Does Totally Bad Exist?

It is difficult for me to imagine how certain forms of writing - I guess I would have to admit any art - can be perceived as anything but awful. If anything goes, depending on the audience, what determines effective communication? How do I begin to teach it? I attended a Present Music Concert once that my daughter, as a member of the Milwaukee Children's Choir, was performing in. As the concert began, random women came into the performance space shrieking discordant, exceedingly high notes while a drummer skipped around the room randomly pounding. It was extremely silly to me and it was all I could do not to laugh. The audience later raved about how wondrous it was. I thought it was garbage. Was it bad? Apparently not. Later, my daughter was performing as a soloist for a concert with the same pairings, and the director was talking her through the solo she was going to sing in his new composition. The two of them were trying to figure out how they could possibly teach the choir to sing their part because it made no musical sense. My daughter was twelve. She loved it. She is now a music major and a composer, so obviously it is only me that thinks it's bad. Personal bias, I suspect, rather than qualified critiquing.