Yes, you can post public domain material. If they are 'out of copyright', that means that they are no longer copyright, and you have all the rights to the song.

But make sure it really is public domain. For example, Josie recently posted a list of public domain and non-public domain Christmas songs, and you might be surprised how many of them are not yet in the public domain.


-- David Cuny
My virtual singer development blog

Vocal control, you say. Never heard of it. Is that some kind of ProTools thing?