Dave Webber did indeed write “Parting Song” (with lyrics as shown by Jeri in August 2001 - NOT those posted immediately above).
I first heard it on the Beggar’s Velvet album entitled Lady of Autumn (another fabulous song) which first came out as an LP in 1990, and later in CD format: one of the best albums I have ever bought!
Beggar’s Velvet included Dave Webber, Anni Fentiman, and Charlie and Cathie Yarwood.

I did once get to sing it, somewhat unexpectedly, at a funeral: it had been printed into the order of service, but I wasn’t asked until we were on our way into the crematorium! I was about to ask the organist for a start note when he started to play it: I thanked him afterwards and asked him how he knew it: “Oh, I just looked it up on YouTube beforehand” he said!