Z:gnu-www-ja-copyright-and-globalization--1c4013-=3Cb=3EQUESTION=3C/b=3E: To extend the/en

QUESTION: To extend the conversation for just a moment, in certain entertainment fields, we have the concept of a public presentation. So, for example, copyright does not prevent us from singing Christmas carols seasonally but it prevents the public performance. And I'm wondering if it might be useful to think about instead of expanding fair use to unlimited, non-commercial, verbatim copying, to something less than that but more than the present concept of fair use.