sentences:  As well as playing cello and halldorophone, Hildur also sings and arranges choral music, once arranging a choir for performances by Throbbing Gristle in Austria and London.As a composer she has written a score for the play "Sumardagur" ("Summer Day") performed at Iceland's National Theatre.She has also written the score for the Danish film "Kapringen " (2012), Garth Davis' 2018 film "Mary Magdalene" (in collaboration with Jóhann Jóhannsson), Stefano Sollima's "" (2018).