[Nige]

Originally Posted by bonjovi90

Bon Jovi - Don't Say Goodbye (Possibly Unknown Demo / Osaka 1987) - YouTube

This song was played as an introduction to Never Say Goodbye in Osaka 1987. Since in almost 3 decades no one had been able to decipher what the original song might've been, I started to think that it maybe was a demo of something he had written on the road and just wanted to try on the spot.

That's pretty much the same conclusion I've come to now. I'm sure someone would have recognised it if it was a cover.