In this case, it's the UK magazine Electronic Sounds that came up with the goods. This single features two tracks by Soft Cell (you wouldn't have guessed it, looking at the sleeve) from 1981. The A-side is a demo of the duo's biggest hit, 'Tainted love', while the B-side is a version of 'Bedsitter' that was previously released on a flexidisc with the magazine Flexipop - yes, even four decades ago UK magazines were more interesting than Dutch ones. It's high time this country catches up.
My collection: 7" single no. 7088
Found: Electronic Sounds website, received 15 December 2023
Tracks: 'Tainted love (demo)' / 'Bedsitter (Flexipop version)'