I have mixed feelings over Delius. I grew up with the Beecham live performances and recordings and still feel that he got to the heart of the music more than most.
I do find my attention wanders sometimes in certain works though.
My personal memory of Delius is seeing his grave in Limpsfield, Surrey, also taking his own mss score of the Violin Concerto from London to the printing works in Norfolk where it was to be lodged. I managed to have a good look at it on the car journey, signed 'Fritz Delius' of course. I don't know where it is now, that firm being taken over by someone else, a thing that happened constantly in music publishing in my day.