▁References ▁▁▁▁ ▁Category : Is lands ▁of ▁the ▁Pal mer ▁Arch ip el ago <0x0A> </s> ▁K et il ▁H vos lef ▁( né ▁K et il ▁S æ ver ud ; ▁born ▁ 1 9 ▁July ▁ 1 9 3 9 ▁in ▁Ber gen , ▁Norway ) ▁is ▁a ▁Norwegian ▁composer . ▁ ▁He ▁is ▁the ▁son ▁of ▁composer ▁Har ald ▁S æ ver ud . ▁ ▁Biography ▁ ▁H vos lef ▁studied ▁vi ola ▁and ▁organ ▁at ▁the ▁Ber gen ▁Music ▁Conserv atory ▁( now ▁a ▁part ▁of ▁Gr ieg ▁Academy ) ▁gradu ating ▁in ▁ 1 9 6 2 . ▁ ▁He ▁further ed ▁his ▁studies ▁in ▁Stockholm ▁with ▁Karl - B ir ger ▁Bl om d ahl ▁and ▁Ing var ▁L id holm , ▁then ▁in ▁London ▁with ▁Thomas ▁Raj na ▁and ▁Henri ▁Laz ar of . ▁ ▁He ▁taught ▁music ▁theory ▁and ▁ear ▁training ▁at ▁the ▁Ber gen ▁Music ▁Conserv atory ▁( 1 9 6 3 – 1 9 7 9 ). ▁ ▁H vos lef ▁had ▁his ▁debut ▁as ▁a ▁composer ▁in ▁ 1 9 6 4 ▁with ▁the ▁Con cert ino ▁for ▁P iano ▁and ▁Orchestra . ▁ ▁He ▁has ▁composed ▁works ▁for ▁the ▁stage ▁including ▁the ▁opera ▁Bar ab bas , ▁for ▁or chestra ▁including ▁the ▁sym ph onic ▁poem ▁Mi - Fi - Li . ▁H vos lef ▁has ▁also ▁written ▁a ▁number ▁of ▁solo ▁concert os ▁for ▁piano , ▁tr ump et , ▁double ▁bass , ▁viol in , ▁bass oon , ▁c