There are two ways to listen to this ballad: as a generic love song where life will be "forever autumn" now that you're gone - possibly dead; and as something very specific.
Although Jeff Wayne wrote the melody as long ago as 1969 - as a jingle for a commercial - and it was recorded by co-writers Vigrass & Osborne for their 1972 album Queues
. "I'd done a Lego ad that at the time was very popular," Wayne recalled to Mojo
magazine. "People wrote in, asking if it was a record they could buy, which it wasn't until Vigrass and Osborne wrote lyrics and it became Forever Autumn."
His uptempo version is distinctly inferior to the later Justin Haywood version
, which was recorded for Wayne's musical version of The War Of The Worlds
To understand it properly, it is probably best to listen to the entire (double) album, on which it is the 2nd
track on Side B running to 7 minutes 43 seconds.