 From 1937 to 1943 Jensen recorded over 60 sides of music for HMV, Odeon and Tono.In Aarhus he recorded works by Kuhlau, Tarp, Elgar, Massenet, Møller, Debussy, Tchaikovsky and Smetana.His first recordings of Nielsen date from 1941 (the Suite for String Orchestra) with the Helios overture and orchestral opera extracts in the following year.