Cosmotheka - a brilliant act. Here's a link telling more. Al Sealey sadly died in 1999, which means no more Cosmotheka - but the other half of the act, his brother Dave, is still performing.
The records are great. But what I'd really love to get hold of would be a video of a Cosmotheka performance. (I suppose there might be one from the last time they were at Sidmouth in the Arena...)