I have just dug out two singles, one being The Scars singing Psychomodo and Yvonne Keeley singing Loretta's Tale and Tumbling Down.
I remember seeing The Scars in a Glasgow City Cente Pub (The Mars Bar)and was amazed when they sang Psychomodo. I spoke to the lead singer and he explained that he had been pleading with Steve to allow them to feature Psychomodo on a B side of a single.
The Yvonne Keeley single has the fact that it is a demo record across the middle of it. Is this worth a few pounds ? I would however stress it is not for sale. I am asking only out of curiousity.

How do Jack,

there is a Yvonne Keeley demo single on ebay at the moment from 1975 - (a)concrete and clay (b) hideaway - £7 to go.

In 1975 Steve also produced a Patricia Paay album 'Beam of Light' which had Sebastian on. (Patricia is Yvonne's sister I believe) Worth buying just to hear Steve's production work. There are LP copies on ebay. 1975 - a busy, productive year!