Note that this information is AFAIK...!
1) Since you are located in the USA, and the recordings were made in the USA, they fall under existing US copyright law...which states that EVERY sound recording made in the USA is either under copyright or protected by more-inclusive state legislation until January 1, 2067 (or later if the law is amended...!)!
Mike -- mrichter@xxxxxxx http://www.mrichter.com/