I offer the following in the hope of putting at least one of Mr Sarstedt's works into a historical and social context.
When 'Frozen Orange Juice was released (circa 69/70) it had as its b-side a risque little number called 'Take Off Your Clothes', the kind of thing that the BBC would never normally have countenanced broadcasting in a million years.
However one lunchtime, on the evocatively titled 'Radio One Club', a cool, hip, beeb 'deejay' put the wrong side of the record on by mistake. For a while western civilisation teetered on the edge of an abyss, questions were asked in the house and our own dear Mrs Mary Whitehouse (q.v.) suffered the worst fit of the vapours in her illustrious career.
But the BBC apologised, so that was all right.
The only other thing I can remember about Mr S is the annoying way many people had of pronouncing his name, as 'Sarztit'.
Oh, and brother Robin's hit was, I think, 'My Resistance Is Low'.
I hope this is of help.