In October 1967, the band Pink Floyd visited Delia at the BBC Radiophonic Workshop. She mentioned that she felt that the tour was a bit of a disappointment and took them in a cab over to Putney where the VCS3 synthesizer was being developed, which was subsequently used by them on their album Dark Side Of The Moon
I took Pink Floyd there [to Peter Zinovieff's studio] in a taxi.
Pink Floyd (came to the workshop) and I took them down to Zinovieff's place. [...] I paid for the bloody taxi for all these people!
It was Delia who took Pink Floyd to EMS' studio and it was thanks to her that they bought their Synthi A which they used in several of their albums.