I've just published a new article on David Sylvian's involvement with Propaganda at the time of the making of their much-praised debut album A Secret Wish.
Sylvian was invited by ZTT executive (and music journalist) Paul Morley to produce the album when it was clear Trevor Horn would be unable to do so given the phenomenal success of Frankie Goes to Hollywood. Whilst Sylvian declined the offer, he did come up with the first mix of 'Duel' (never released) and composed a synthesiser part for 'p:Machinery' which the band (and the ultimately appointed producer Steve Lipson) recognised as being a defining contribution.
Here's the link: https://sylvianvista.com/2022/07/22/pmachinery/