AMNESIA HOUSE 1991 - Castle Donnington

Hi all, hope anyone of you can help us id this tune. This from the beginning of amnesia house back in 91, but my question is, the opening tune of this clip (although this starts from Sined rosa) is cut in with I'm sure with something completely different. This is because if you youtube Sined Roza and - "I don't know what it is", it doesn't exactly match with what's on the video footage. Any clue would be appreciated - thanks.

Red

YouTube - ‪Amnesia House - Donnington Park 14-12-1991 (Onlyoldskool.com) part 1‬&rlm;