Studied recorder with Frode Thorsen at the Grieg Academy in Bergen (Norway); he graduated in performance (2000) and pedagogy (2001), and received a Master’s degree in performance (2004). In addition, he completed a Konzertexamen with distinction with Peter Holtslag at the Hochschule für Musik und Theater in Hamburg (2003). From 2005 to 2009 he was a research fellow of the Norwegian Artistic Research Program with a project on improvisation of diminutions in the polyphonic repertoire from 1350 to 1700. He is currently teaching recorder, Baroque ensemble, and music theory at the Grieg Academy, and historical improvisation at the Hochschule für Musik und Theater “Felix Mendelssohn-Bartholdy” in Leipzig. Gundersen has given master classes, workshops, and lectures at academies and universities in Portugal, Austria, Germany, the Czech Republic, and in the US.

He has appeared as a soloist and chamber musician in many countries and with several ensembles, and his interest in contemporary music has led to premieres of pieces by such young Norwegian composers as Tor-Erik Hellesen, Jostein Stalheim, Ruben Sverre Gjertsen, and Berge Osnes, and by Czech composer Jan Rokyta.