Hvoslef has com-posed a wandering bass line which goes through the whole piece. The descant part and the trumpet eventually merge into a rhythmically intense drive and an effective ending.
The piece was premiered at BrassWind 2010.
Perpetuum Trompetuum was written for Erlend Aagaard-Nilsen in 2009.
The piece is recorded by Erlend Aagaard-Nilsen and Jarle Rotevatn on the CD “Perpetuum Trompetuum” (2015) – LAWO Classics (LWM008).
Hvoslef studied the viola and organ at the Music Conservatory in Bergen, from which he graduated as an organist in 1962. Hvoslef continued his composition studies, first in Stockholm with Karl-Birger Blomdahl and Ingvar Lidholm, and later in London with Thomas Rajna and Henri Lazarof. From 1963-79 he taught ear training and theory at the Music Conservatory in Bergen.
Ketil Hvoslef has received the prize "Work of the Year" from the Norwegian Society of Composers four times: In 1978 for Concert for Choir and Chamber Orchestra, in 1980 for Concertino for Orchestra, in 1985 for Il compleanno and in 1992 for Serenata per archi. He was composer in residence at the Bergen International Festival in 1990.