questions after digesting written thoughts.

1. What are and can be some approaches to address the quest of defining beauty via sound art? What is like to interlink some of the objectives within art's realm?
2. Investigation of cultural and/or historic elements that have helped to confirm synergy in overall works discussed so far.
3. Why can't I get rid of a feel that 'sound art' has limited listeners/observers compared to best of the rest (art) ?