Both my parents were born during the Great War<1>, indeed, family legend has it that my maternal Grandfather heard that my Grandmother and mother were ill and, when he couldn't get leave to visit then, walked home (Royal Garrison Artillery on the South Coast) to London, made sure they were OK then, in order to avoid punishment went around the corner and re-enlisted in the local infantry battalion <2>.
My paternal grandfather was a regular sailor (cruisers) and spent most of his time with the Grand Fleet.

As for songs about (rather than from) the Great War, try "Maginot Waltz" (yes the title's anachronistic (Maginot didn't make it into French politics until between the wars), but it does give a feeling of that last Bank Holiday of peacetime 1914.

Walrus