quadrant park 91 piano tune

been after this one for years but had given up hope till discovering it on the first quad dvd at about 1 hour very brief though. theres just a piano with no vocals which then breaks down to a deep bass bit which i believe is a sample of the definition of a track not much to go on can anyone help :(

probably this: Rusty - Everything's Gonna Change (Remix)

thanks pluto i think you might be right ive just listened to a ix of rusty with vocals in it although not the same there is a small piano part which is very similar
thanks jimmy