This song has been performed by Tim Hart and June Tabor at a John Peel Radio 1 session recorded on March 4, 1975 and broadcast March 10, 1975. It is based on an old alphabet song: “A is for horses, B for supper, C for yourself...” etc with the chorus

And the showman he cried:
“We're all at your side
And there's no need to worry at all”

I don't know of any published recording of this song.