Help:Can I make copies for my choir?

From ChoralWiki

Yes. All the scores listed on CPDL are in the public domain, so in most cases there's no restriction on distributing, duplicating, or performing our music.

There are a couple of exceptions:

• In a few cases, the composer may request that you contact him or her if you decide to perform his or her work.
• Some scores which are linked from CPDL, but which actually reside on other affiliated websites, may have further restrictions on use. Check the individual copyright statements on affiliated websites to find out what restrictions apply in each case.