Dagfinn Koch (1964, Kristiansund, Norway) have studied at the State Academy of music (Norges musikkhøgskole) (Lasse Thoresen, composition; Olav Anton Thommessen, orchestration; Bjørn Kruse, arranging; Mads Claesson, Arild Erikstad og Tore Simonsen, music technology; Otto Berg, viola), and at Hochschule (now Universität) der Künste Berlin (Witold Szalonek, composition).

He has been freelancing since 1994, and has written music for orchestra, chamber and theatre music, opera, ballet and fine art installations. Besides that has he worked as an arranger for amongst others Finn Coren and Lucifer Was. He has been a member of the Oslo Philharmonic program committee and a member of the board in the Composers society and in the evaluation committee of TONO (the Norwegian BIEM/ASCAP).

Dagfinn lives in Oslo since 2005 after totally 13 years in Germany. In addition to the composition has he worked in a youth club, as a teacher in a music school in Oslo, Bærum and Bergen, as a music copyist and engraver, and as a sound engineer (Henie-Onstad Art center). He has received several scholarships from TONO and was granted a two year scholarship from the Norwegian Ministry for Cultural Affairs in 2006. He was accepted as a member of the Composers society in 1991.

Dagfinn has until now not seeked a particular style. He is more concerned with being able to move in any possible direction. This experience is now developed into a method (not style) which he calles Translucence - a method that builds on post war-modernism techniques combined with an ideomatic way of writing. For him it is not important to use music to communicate a "deeper meaning", but to present a narrativ music which gives the listeners (and readers of his scores) a diversity of possible interpretations.