Had this song running through my head for the last day or so... I doubt anyone'll be able to help, given the lack of info I've got, but here goes:
Only lyrics I can remember are from the chorus: "ain't nothing special", "midnight special", with "get on board the midnight special" as a backing vocal. And that's it.
Male vocal, solo artist, not group (I think). Aussie, early 80's. Female backing vocals in the chorus making "woo woo" sounds to mimic a train.
Music is mid to up-tempo soft blues / rock. As to the vocal - similar to Mick Pealing / Peter Cupples / Paul Norton, that sort of thing. I'm only assuming it's Aussie, may not be!
Absolutely got me stumped - would love to get a copy for use on-air, but can't do that without knowing who it is or the title...