For more information on Delius and his music, the following sites may be of interest:

Delius, Apostle of Nature: https://www.deliusapostle.com/

Oxford University Catalogue of Delius’s works: https://delius.music.ox.ac.uk/catalogue

Thompsonian – Delius: http://www.thompsonian.info/delius.html

British Library – Discovering Music: https://www.bl.uk/people/frederick-delius#

National Portrait Gallery – Delius: https://www.npg.org.uk/collections/search/person/mp01244/frederick-delius

Classic fM – 20 facts about Delius: https://www.classicfm.com/composers/delius/pictures/20-facts-about-delius/