" There are really rules about changing the gender of characters? What about minor characters? Do they count too?"
This is from the MTI website:
"Responsibilities of the Producing Organization
During rehearsals, the director or producer may find that some changes are required to make the show work in their theatre. Or they may feel making "minor adjustments" to a show (such as changing the gender of a character or changing the name of a town to give it local significance) is inconsequential to its integrity, or believe they have the right to "experiment" with the authors' intentions as an expression of their artistic vision.
This is not the case.
When you are granted a performance license, by law the show you license must be performed "as is." You have no right to make any changes at all unless you have obtained prior written permission from us to do so. Otherwise, any changes violate the authors' rights under federal copyright law. Without prior permission from MTI, your actions may subject you to liability - not only to the authors, but also to us - for breaching the terms of your license agreement, which clearly forbids you to make any changes or deletions. Occasionally, new versions of shows are created when the authors or someone the authors have approved reconceives the piece. However, only the authors have the right to make these revisions, and they rarely grant third parties permission to do so. If you feel you must experiment with reconceiving a show, there are many already in the public domain (Shakespeare, Gilbert and Sullivan) which are no longer protected by U.S. copyright law. It's important to remember that under Federal copyright law, not only can the director or producer who decided to change the work be held liable, but the entire production staff, cast and crew -- even the owner of the building, can be held liable, whether or not they knew they were part of a willful violation of copyright law."
A few years ago a middle school did a production of "Music Man" and had Harold Hill changed to a Harriet Hill. MTI found out about the changes and sued the school district. That school is NO LONGER alowed to perform any MTI show, and MTI has told both R and H and Tams-Witmark about that school.
David walked into the valley
With a stone clutched in his hand
He was only a boy
But he knew someone must take a stand
There will always be a valley
Always mountains one must scale
There will always be perilous waters
Which someone must sail
-Into the Fire
Scarlet Pimpernel