The Easter season has many beautiful melodies and O Filii et Filiae is one of my favourites. There are many loud and grand arrangements of this tune but this meditation is quite the opposite. It's peaceful and melancholic nature make it suitable for moments where contemplative music is required. The score is available for instant download below.
Score: https://www.sheetmusicplus.com/en/product/meditation-on-o-filii-et-filiae-op-258-organ-solo-by-vidas-pinkevicius-22736892.html?aff_id=478282
Organ specification: https://www.ohta.org.au/organs/organs/AlburyStMatts.html