Hey,

Sometimes the only clues that can solve a puzzle come from details associated with the tape.

If you can trace (if that's possible) where the tape came from, you might get some clues.

Another thing you can do if have the tape made into a CD or MP3 file so that you can let other people hear it. You can put it on a web-site and then attach a link.

Because the lyrics to both your songs can't be traced with google search it leads me to believe these are original songs by an unknown artist.

Richie