Norwegian classical composer, born in 1939 in Fana, Bergen. Son of Harald Sæverud and brother of Trond Sæverud.
Born Ketil Sæverud, he changed his surname to Hvoslef, his mother's maiden name, in 1979.
http://www.mic.no/mic.nsf/doc/art2002100713563726847791
https://lawostore.no/assets/files-rte/LWC1066_Hvoslef_Chamber_Works_No_I_ebooklet.pdf