Copyright Tools
It is the responsibility of each of the composers/arrangers to confirm that they own the rights to publish the music distributed on this site. To help you find more information on copyright laws, here are a few sites:
Canadian Intellectual Property Office - Canadian Copyrights Database
http://www.ic.gc.ca/app/opic-cipo/cpyrghts/dsplySrch.do?lang=eng&wt_src=cipo-home
Society of Composers, Authors and Music Publishers of Canada - Copyright 101
http://www.socan.ca/files/pdf/Copyright%20101%20Eng.pdf
Songwriters Association of Canada (SAC)
United States Copyright Office