The 2008 web article Lost tapes of the Dr Who composer is accompanied by a "find" in Delia's Attic Tapes of what they call an "Experimental 'dance' track". I'm not sure what those single quotes are meant to suggest.

A reader on the net quickly identified it as the rhythm track of Dance from Noah but it is, in fact, a different piece constructed using the same rhythm track but with different melodic elements blended in.

Until we discover what it really is, for lack of another name, we'll call it Experimental Dance Track. Sadly, the Manchester inner circle never say what if Delia's music *is* when they reuse it as the soundtrack to their own visual efforts.