Running Sheet for Musicians/Choirs Copyright

for the choirs/musicians I have given them a template, designed in Excel, that lists the parts of the Mass and they can fill in what they want to do. I require the running sheet back at least the Wednesday before the particular Mass so I can check that we have copyright and make up the PowerPoint Presentation. When I'm going on leave, the running sheets are sent to me at least 2 weeks in advance so I can have the Power-Point Presentations made up in advance so my replacement doesn't have to worry about joys of copyright.