This is my cover of Anna's part. It is a duet with youtube user Josh Hartwell. Unfortuanatly I don't know where he got the instrumental :( Check out my cover on youtube www.youtube.com/watch?v=Krjt_srIu-U Also on Soundcloud https://soundcloud.com/#katie-lynn-47/love-is-an-open-door-duet
Please contact me if you would like to use this in a project. We can discuss the details.