thanx guys, unfortunately that don't sound like it either. I did make another posting with more info as below if that helps. The vocals may well have been 'I'll take you higher' the keyboard is a sort of organ sound but not as synthesised as the Pisces track.
I did come across a scrap of paper I scribbled on when I was away that this tune (or a remix of it) was played on UK Radio One at 08.10 am on Wednesday 29 June 2005.
If anyone has a way of accessing the list of what was played from (say) 08.00 to 08.20 that day, it would most likely give me the answer I have sought for some years and I'd be very grateful. For the musical, the notes in the instrumental break repeat E E G A- A--- A A E G- G--- G G F# A- A--- A A E G- G--- G G F# A- etc. (sounds better on a piano rhythm approximate!)