Is copying individual pages of music (for example,  to avoid awkward page turns) illegal?

Question 1

Can copies legally be made of music being played in an organ recital so that the program can proceed smoothly and without the need to stack books on top of one another and constantly move them around?

Question 2

If one owns a collection of arrangements, and the editing is such that the page turns are all but impossible, may copies legally be made so the music can be arranged in sheet protectors, etc., to facilitate page turns as long as both the collection and the copy will not be used at the same time, but rather one or the other?

Question 3

What of my organist who insists on using photocopies to avoid awkward page turns and books that refuse to stay open?

Response:

There is no provision in the copyright laws that provides for photocopying and using protected music in these situations without the permission of the copyright owner. As logical as this kind of copying appears to us, and as restrictive as the law appears in denying it, it is still the law. Your options are to contact the copyright owner for permission or to act upon the assumption many musicians hold that publishers will not prosecute such use (which may or may not be the case).