"Just a thought - is it possible that a band would name a track differently to the original? For example, could they take the lyrics of 'Get Ready' where it says 'Get Ready 'cos here I come' and name the cover-version 'Here I come'?
I don't know the laws around doing that - but the song is definitely a cover of 'Get Ready'"
"Unfortunately, it's not looking like 'Greenhouse' - I also turned up that result doing an advanced search on Discogs - but from what I can find on YouTube they sound quite different.
Also, the track lengths I have for the songs are as follows:
3:30 - 'Get Ready' cover"