Larry Rand recently sent me the lyric to a song which he taped at WFMT studios, Chicago, years ago, which WFMT has played repeatedly over the air. Larry mentioned that "the song
has never been commercially recorded...so you would need my permission to do so."
I suspect that if Marions song has never been sold for profit, and no one else has acquired any kind of right to the song, there would be no real obstacle to entering it in a contest. Ethically, it still has "amature status". But if, when you put the song on a website, the owners of a site can claim any degree of right to it, the conflict would disqualify it for the contest. I'm winging this from loosely related experience, not claimin' legal expertise.