Purchase one file and the intended use Copyright Permissions allows you to share the file or a printed copy with those performing the work with you.  You may not resell this file nor give it to another in such a manner that it would deprive the copyright holder of a legitimate sale.  

This music  may be streamed online (live or recorded) provided it is made available to the public at no charge.  Performing the work for hire outside of a religious or educational institution violates the composer's copyrights and will be prosecuted.