More lasting than themselves

I'm writing notes for a programme for the ladies' choir I conduct. Something that strikes me over and over again is how often a published but extremely minor poet, a poet who is now all but forgotten (except perhaps on Wikipedia), has managed to survive longer into the future than might otherwise have been the case, because one or two of his or her poems were set to music. By a much more famous composer.

The songs I'm thinking of are mostly from the British art song period - from the very late...